Sealed Cavern is a hidden location within the Submerged Island, accessible through a destructible entrance that players must break to enter.

The entrance to the cavern is located behind a house near the Coral Pirates area, making it easy to miss unless players explore the island carefully.

Additional Information:

• Sharkman Karate can be upgraded by training and purchasing upgrades from the Sharkman Master in the cavern.

• There is currently a bug where the entrance cannot be destroyed by moves. This can be fixed by joining a different server or flash-stepping behind the entrance.