The Sea Caves

The Sea Caves are an area in Club Penguin Island. It is a system of underwater caverns below the sea, filled with crystals, treasure, and ancient ruins, and inhabited by many aquatic creatures, such as fish, clams, squids, and crabs. The deepest part of the caves are volcanic.

Air
The caves utilize an air mechanic. While underwater, players have a large bubble of air surrounding them. Except for certain sections of the cave, air slowly depletes over time, and the air bubble shrinks. If the bubble ever runs out of air which occurs after roughly one minute without being refilled, the player loses their breath and automatically resurfaces (players can also manually resurface at any time). Air can be refilled at any time by entering certain areas or coming into contact with bubbles stationed at various points around the caves.

Entrance
The entrance is the only place in the caves above sea level. In the center, there is a small pool of water, which leads down into the main caves. There is a large staircase made of rock that spirals around the entrance, and ends in a ledge with a springboard, which players can use to launch themselves into the water. Additionally, there are some broken parts of a ship protruding out of the rocks. The exit, which leads to the Coconut Cove, is under the stairs.

Central area (north)
Below the entrance is a circular cavern with large ruins. Below leads down further into the cave, and in the left of the area there is an entrance to the race course. There are also a few seashell chairs that players can sit in.

Race Course
The race course wraps around the side of the northern central area. Here, players can try and complete the race as fast as they can. After crossing the starting line, the player is timed, and air bubbles with checkered patterns must be collected to complete the race. The race however is littered with hazards, such as squids and cacti, which cause the player to bounce off them when touched, and venus fly traps, which can eat a nearby player and spit them out a few seconds later. After the player reaches the finish line, a scoreboard shows the time it took them to complete the race in seconds and milliseconds (up to two digits each). If the player did not collect all checkered bubbles along the way, the time is not displayed.

Central area (south)
The lower central area has the largest amount of open space in the caves, and connects to all other areas except the entrance and race course. On the left side, there are paths leading back above, to the Party Sub, Glow Grotto, and Crab Den. On the right side, there are many hazardous creatures, including two rings of sea urchins, squids, and venus fly traps, as well as a path to the Throne Room.

Party Submarine
The Party Submarine (or Party Sub for short), west of the central area, is a damaged submarine outfitted with interactive disco ball, lights, and confetti blaster, located in a small cave. The sub plays five different songs, which change every few minutes. Large parts of the sub are torn off, such as the back end, propeller, and some lights. Some parts are nearby, but others are completely missing. While in the cave containing the sub, air does not deplete.

According to loading screen messages, "some say" a "brilliant penguin" built the sub and that it may still hold top secret information.

Throne Room
The Throne Room, east of the central area, is a small cave in an underwater air pocket. There is not much in the throne room beyond a large throne and large crystals growing on the ground and walls, and also some stalactites and stalagmites that form what resembles a jail cell. A long tunnel connects the room to the central areas, which is adorned with multiple arches.

Glow Grotto
The Glow Grotto, south of central area, is a small cave deep underwater, which most notably houses the Deep Sea Shop. Here there are many exotic corals, fish, and a large oyster visible in the distance. There are also a few chairs that can be sat in. While in the grotto, air does not deplete. The tunnel that connects the room up to the central area is adorned with cacti.

Crab Den
The Crab Den, southwest of the central area, is a winding tunnel inhabited by many crabs. The path is littered with wooden wreckage, and curves around multiple times. The lower parts of the tunnel are right above an underwater volcano, which has multiple vents that blast steam periodically which can impede progress. At the very end of the tunnel is the den itself, which is filled with treasure. Air does not deplete here. Below the pile of treasure is a tube, which provides a quick exit back up to the central area, but it only works one way, and cannot be used to get back down.

Collectibles

 * The following collectibles can be found here. Coins are also included.

Daily Challenges

 * The following challenges can be completed here.

Quick Chat messages

 * The following location-specific Quick Chat messages can be used here.

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General

 * Share air!
 * Follow me!
 * I'll follow you.
 * Watch out for trapper plants!
 * Where is the throne?
 * Can you swim all the way down?
 * What's at the bottom?
 * Hey look, bubbles

Surface

 * The Sea Caves go VERY deep.
 * Another ship crashed here?
 * That spiral symbol is everywhere...
 * I hear there's a treasure!
 * The cave is lit by crystals
 * Watch this dive!
 * Big jump from the balcony!
 * The crabs in here are tough.

Entrance

 * Oooh shiny.
 * The race is to the left
 * Are there any mermaids?
 * Have you heard of Penglantis?
 * Who built all this?
 * * is mermaid*
 * Who needs a partner?
 * I know the story of how this sank...

Race Course

 * GO GO GO!
 * Boost to win!
 * Avoid those cacti!
 * Close race!
 * Great swimming everyone.
 * Best time yet!
 * I got squidded!
 * Don't forget air!

Party Sub

 * I heard this is a spy sub.
 * Ain't no party like a sub party!
 * Sonar says: GLOWSTICK PARTY!
 * Disco ball to full power!
 * What made these bite marks?
 * Turn up the SUB-woofers
 * The pipe leads to treasure!
 * DIVE DIVE! Oh wait...

Throne Room

 * * is royalty*
 * * is guard*
 * I'm in jail!
 * I'll free the prisoners!
 * Behold the magic sceptre!
 * That's MY throne!
 * Thank you my subjects!
 * Someone protect me!

Glow Grotto

 * What wondrous creatures
 * Whoa! Wild colors, dude
 * Glowsticks are sold here
 * This is as deep as it gets
 * We made it!
 * Race you to the top!
 * Great place for deep thoughts.
 * Underwater GLOW PARTY!

Crab Den

 * It's getting hotter.
 * Aww, cute crabs.
 * Yikes! Lava!
 * Is this where hot sauce comes from?
 * Nice place you got here.
 * Hey, don't pinch!
 * Do you guys know Klutzy?
 * So many crystals at the end.
 * }

Trivia

 * In the 1.0.1 update to Club Penguin Island, players now appear darker while in The Sea Caves.