The Royale High Mermaid Update has transformed Campus 4 into an underwater paradise, bringing not just the stunning Silk Spun Eveningfall Halo and new mermaid potions, but also three hidden treasure chests containing valuable rewards. I’ve spent hours exploring every underwater cave and island to bring you this complete guide to all chest locations, ensuring you won’t miss a single diamond or XP point in this magical update.

Royale High Mermaid Update

Quick Overview

Chest #LocationRewardDifficulty
1Beach area – Left island cave400 DiamondsEasy
2Beach area – Right island underwater150 XPMedium
3Near Chest 2 – 180° turn80 XPEasy

Royale High Mermaid Update Chest Locations

The June 19, 2026 Mermaid Update didn’t just introduce beautiful new cosmetics and mermaid transformations – it strategically placed treasure chests throughout the revamped Campus 4 beach area. Unlike previous chest hunts that required complex puzzle-solving or hidden switches, these chests are all about exploration and knowing exactly where to look underwater.

What makes this chest hunt particularly exciting is that all three chests are concentrated in the beach area of Campus 4, making it possible to collect all rewards in under five minutes once you know their exact locations. The total rewards – 400 diamonds and 230 XP – might seem modest compared to some events, but for new players or those saving for the latest accessories, every diamond counts.

How to Access the Beach Area in Campus 4?

Before we dive into the specific chest locations, let me walk you through accessing the beach area where all these treasures await:

  1. Launch Royale High and select Campus 4 from the realm selection menu
  2. Spawn in the main campus and head toward the beach exit
  3. Look for the beach signs pointing you in the right direction
  4. Enter the beach area through the designated pathway

The beach area features crystal-clear waters perfect for swimming, multiple islands to explore, and most importantly, our hidden treasure chests waiting to be discovered. The update has enhanced the underwater visibility, making chest hunting more enjoyable than ever before.

Chest Location #1: The Left Island Cave (400 Diamonds)

Our first treasure chest offers the most valuable reward of the three – a generous 400 diamonds that could help you purchase that accessory you’ve been eyeing or save toward a more expensive item.

Step-by-Step Guide:

  1. From the main beach spawn point, turn left and swim toward the far-left island
  2. You’ll notice this island has a distinctive rocky formation
  3. Dive underwater and swim beneath the island
  4. Look for a small cave-like opening in the rock face
  5. Swim through the entrance – the chest is immediately visible inside
  6. Interact with the chest to claim your 400 diamonds

Pro Tips for Finding This Chest:

  • The cave entrance glows slightly, making it easier to spot in darker water
  • If you’re having trouble finding the entrance, swim around the entire island’s underwater perimeter
  • The chest respawns for each player, so don’t worry if friends have already claimed it

This chest is considered the easiest to find among the three, as the cave entrance is relatively large and the island itself serves as an obvious landmark. Many players stumble upon this chest naturally while exploring the new beach area.

Chest Location #2: The Right Island Underwater Paradise (150 XP)

The second chest requires a bit more underwater navigation but rewards explorers with a solid 150 XP boost – perfect for leveling up faster in the game.

Detailed Navigation Instructions:

  1. Starting from the beach spawn, swim toward the far-right side of the map
  2. Locate the island with the distinctive bent palm tree (this is your landmark)
  3. Dive underwater near this island
  4. Swim to the right side while underwater
  5. Look for strands of green seagrass swaying in the current
  6. Near the grass, you’ll find a small opening leading to a hidden alcove
  7. The chest awaits inside this underwater sanctuary

Common Mistakes to Avoid:

  • Don’t confuse this island with others – the bent palm tree is the key identifier
  • The opening is smaller than Chest #1’s cave, so look carefully
  • Some players miss the green grass landmark and swim past the entrance

The 150 XP reward makes this chest particularly valuable for players focused on leveling up quickly. Combined with other XP-earning activities in Campus 4, this chest provides a nice boost to your progression.

Chest Location #3: The Quick Turnaround Treasure (80 XP)

The third chest is cleverly hidden in plain sight, requiring players to simply turn around from Chest #2’s location. This design encourages thorough exploration of the underwater areas.

Simple Discovery Method:

  1. After collecting Chest #2, don’t surface immediately
  2. Make a complete 180-degree turn while still underwater
  3. Look straight ahead – you’ll see another small underwater area
  4. Swim forward toward this visible location
  5. The chest is easily spotted once you enter the area
  6. Claim your 80 XP reward

Why Players Miss This Chest:

  • Most players surface immediately after finding Chest #2
  • The natural instinct is to swim back to shore rather than explore further
  • Some assume there are only two chests based on incomplete guides

While 80 XP might seem like a smaller reward, every bit of experience helps in Royale High’s progression system. This chest’s proximity to Chest #2 makes it essentially free XP for those who know to look for it.

Maximizing Your Chest Hunting Efficiency

After helping dozens of friends find these chests, I’ve developed a systematic approach that ensures you collect all three rewards in minimal time:

The Optimal Route:

  1. Start with Chest #1 (left island) for the diamond boost
  2. Surface and swim directly to the right island with the bent palm tree
  3. Collect Chest #2 underwater
  4. Without surfacing, immediately turn around for Chest #3
  5. Total time: Under 5 minutes with practice

Essential Swimming Tips:

  • Use the faster swimming gamepass if you have it
  • Adjust your camera angle for better underwater visibility
  • Turn up your brightness settings if the underwater areas seem too dark
  • Practice diving and surfacing smoothly to maintain momentum

Understanding the Mermaid Update’s Chest System

The Mermaid Update’s chest system differs from previous Royale High treasure hunts in several important ways:

Permanent Availability: Unlike event-specific chests that disappear after holidays or special occasions, these Mermaid Update chests appear to be permanent additions to Campus 4. This means new players joining months from now can still collect these rewards.

No Respawn Timer: Once you’ve collected a chest on your account, it won’t respawn. This is different from some other Royale High activities where rewards reset daily or weekly. Make sure to collect all three chests on each of your accounts if you play on multiple.

Universal Accessibility: These chests don’t require any special items, gamepasses, or minimum level requirements. Whether you’re level 1 or level 1000, you can swim out and claim these treasures immediately upon entering Campus 4.

The Broader Mermaid Update Context

While chest hunting is exciting, it’s just one element of the massive Mermaid Update that transformed Royale High in June 2026. Understanding the full scope of this update helps explain why these chests were added and what other content you should explore:

Silk Spun Eveningfall Halo 2026: The update’s crown jewel is the new halloween-themed halo designed by cheepi. Available at the Nightmare Fountain until early 2026, this ultra-rare accessory features a stunning spider web design that has the community buzzing.

Mermaid Potion Quest: A new questline allows players to unlock six different elemental mermaid potions, each granting a unique mermaid tail transformation. The quest starts with a mysterious bottle found on the Campus 4 beach – not far from our treasure chest locations.

New Masculine Body Options: The update added more inclusive character customization with muscular arm options, perfect for creating mermen or stronger-looking characters.

Animation Pack Additions: New sitting and movement animations designed specifically to work with mermaid tails make underwater exploration more immersive than ever.

Beach House Realm: While not directly related to chest hunting, the new Beach House realm accessible from Diamond Beach offers additional exploration opportunities and social spaces.

Comparing Chest Rewards Across Royale High Updates

To put the Mermaid Update chest rewards in perspective, let’s compare them to other chest rewards throughout Royale High’s history:

Campus 4 Original Chests:

  • Spire Castle Crystal: Picture-Perfect Face Light accessory
  • Waterfall Tunnel: 750 diamonds
  • Principal’s Office (with quest): 5,000 diamonds

Mermaid Update Chests:

  • Total: 400 diamonds + 230 XP

While the Mermaid Update chests offer more modest rewards than some of the elaborate puzzle chests, their accessibility makes them perfect for casual players. You don’t need to complete complex quests or solve riddles – just swim and explore.

Advanced Chest Hunting Strategies

For dedicated treasure hunters looking to optimize their Royale High experience, here are advanced strategies I’ve developed:

Multi-Account Method: If you have alternate accounts, you can collect these chests on each one. While rewards don’t transfer between accounts, having diamonds on multiple accounts can be useful for trading purposes.

Social Chest Hunting: Turn chest hunting into a social activity by creating parties specifically for showing new players these locations. It’s a great way to make friends while helping others.

Chest Location Memory Tricks:

  • Remember “LRC” – Left island, Right island, Center (turn around)
  • Use the “bent palm” as your visual anchor for the second chest
  • The green seagrass is your underwater GPS

Streaming and Content Creation: These chests make perfect content for Royale High YouTubers and streamers. The underwater exploration provides visually appealing footage while helping viewers find the treasures.

Common Issues and Troubleshooting

Even with detailed guides, players sometimes encounter issues finding these chests. Here are solutions to the most common problems:

“I can’t find the cave entrance for Chest #1”

  • Solution: The cave is on the underside of the island, not the sides. Dive deeper and look up at the island’s bottom.

“The green grass near Chest #2 isn’t showing”

  • Solution: Graphics settings might be too low. Try increasing your graphics quality, or look for the opening even without the grass visual cue.

“Chest #3 isn’t appearing after I turn around”

  • Solution: Make sure you’re turning a full 180 degrees and swimming forward. The chest area is directly opposite Chest #2’s location.

“I collected the chests but didn’t receive rewards”

  • Solution: Check your diamond count and XP bar carefully. Sometimes the game doesn’t show notification pop-ups, but rewards are still added.

The Future of Treasure Hunting in Royale High

Based on developer patterns and community feedback, here’s what we might expect for future treasure hunts:

Seasonal Chest Updates: Developers might add special holiday-themed chests with unique rewards during events like Halloween, Christmas, or Valentine’s Day.

Quest-Connected Chests: Future updates might integrate chest hunting with questlines, similar to how the Mermaid Potion Quest works.

Underwater Expansion: With the success of underwater exploration in this update, we might see entire underwater realms with more elaborate treasure hunting mechanics.

Community Chest Events: Collaborative events where players work together to unlock community-wide rewards through collective chest discoveries.

Tips for New Royale High Players

If you’re new to Royale High and the Mermaid Update is your first treasure hunting experience, here are essential tips to enhance your gameplay:

Start with Campus 4: While other campuses have chests too, the Mermaid Update chests are the most beginner-friendly, requiring no special knowledge or items.

Join Royale High Communities: Discord servers and Reddit communities often share chest locations faster than official guides, giving you an advantage in finding new treasures.

Document Your Discoveries: Keep a personal log of which chests you’ve found. With multiple campuses and updates, it’s easy to forget which rewards you’ve already claimed.

Explore Thoroughly: The best treasure hunters in Royale High are those who explore every corner of new updates. Don’t just follow guides – discover secrets on your own too.

Maximizing Your Royale High Experience

While you’re in Campus 4 hunting for chests, don’t miss these other activities that complement your treasure hunting:

Mermaid Tail Customization: After completing the Mermaid Potion Quest, experiment with different tail designs and colors that match your style.

Underwater Photography: The enhanced underwater areas make for stunning screenshot opportunities. Host photoshoots with friends in your new mermaid forms.

Beach Activities: The updated beach area includes new interactive elements beyond chest hunting. Look for beach balls, sandcastle building spots, and hidden easter eggs.

Social Events: Many Royale High players host mermaid-themed parties and fashion shows in the beach area. These events often include chest hunting tours for newcomers.

For more exciting Roblox content and game guides, check out these related articles on findingdulcinea.com:

FAQ

What are all the chest locations in the Royale High Mermaid Update?

The Royale High Mermaid Update features three chest locations in Campus 4’s beach area. Chest #1 is in a cave under the far-left island (400 diamonds), Chest #2 is underwater near the right island with a bent palm tree (150 XP), and Chest #3 is found by turning 180 degrees from Chest #2’s location (80 XP).

How do I find the underwater chests in Royale High Campus 4?

To find the underwater chests, first travel to Campus 4’s beach area. For the main underwater chests, dive near the islands on both sides of the beach. Look for cave entrances under the left island and green seagrass near the right island as landmarks for the chest locations.

Do Royale High Mermaid Update chests respawn?

No, the Mermaid Update chests do not respawn once collected on your account. Each player can collect each chest only once, receiving 400 diamonds from the first chest, 150 XP from the second, and 80 XP from the third chest permanently.

What rewards do you get from the new Mermaid Update chests?

The three Mermaid Update chests provide: Chest #1 gives 400 diamonds, Chest #2 rewards 150 XP, and Chest #3 grants 80 XP. The total rewards are 400 diamonds and 230 XP combined from all three chests.

Can I collect Mermaid Update chests on multiple accounts?

Yes, you can collect the Mermaid Update chests on each separate Roblox account you own. However, rewards cannot be transferred between accounts, and each account can only claim each chest once.

Do I need any special items to access the Mermaid Update chests?

No special items, gamepasses, or level requirements are needed to access the Mermaid Update chests. Any player can swim to the locations and collect the rewards immediately upon entering Campus 4’s beach area.

When were the Mermaid Update chests added to Royale High?

The Mermaid Update chests were added on June 19, 2026, alongside the Silk Spun Eveningfall Halo, new mermaid potions, and other mermaid-themed content in the major Campus 4 update.

Are there more than three chests in the Mermaid Update?

Currently, only three confirmed chests exist in the Mermaid Update as of June 2026. However, developers often add hidden secrets, so continued exploration is recommended. Check back for updates as more chests may be discovered.

Why can’t I see the green grass near Chest #2?

If the green seagrass isn’t visible near Chest #2’s location, try increasing your graphics settings in Roblox. Lower graphics settings sometimes don’t render decorative elements like seagrass. The chest entrance exists regardless of whether you can see the grass.

How long do Mermaid Update chests stay in the game?

The Mermaid Update chests appear to be permanent additions to Campus 4, unlike limited-time event chests. They should remain available indefinitely, allowing new players to collect them anytime.

Can I trade the rewards from Mermaid Update chests?

Diamonds earned from chests can be spent on tradeable items, but the diamonds and XP themselves cannot be directly traded to other players. Use your 400 diamonds wisely on items you can later trade if desired.

What’s the fastest route to collect all three chests?

The optimal route is: Start at the left island for Chest #1 (400 diamonds), swim directly to the right island for Chest #2 (150 XP), then immediately turn 180 degrees underwater to find Chest #3 (80 XP). This route takes under 5 minutes.

Conclusion

The Royale High Mermaid Update’s three hidden chests offer an exciting treasure hunt that perfectly complements the update’s aquatic theme. With 400 diamonds and 230 XP waiting to be claimed, these easily accessible rewards provide a great starting boost for new players and a fun exploration activity for veterans.

Remember that Royale High continuously evolves, and while these three chests are currently all we’ve discovered, the developers are known for hiding additional secrets in updates. Keep exploring, stay connected with the community, and check back here for updates as new discoveries are made.

Whether you’re diving for diamonds or swimming with your new mermaid tail, the Mermaid Update has transformed Campus 4 into an underwater wonderland worth exploring. Happy treasure hunting, and may your chest discoveries fund your next fabulous Royale High outfit!

Save this guide for easy reference, and don’t forget to share it with friends who might be struggling to find these hidden treasures in the depths of Campus 4!