What is inside the Ocean Cave? Coral Island gameplay 

I guess they made the ocean caves to gather more trash and coffers. Maybe there's more in the future updates.

is there anything in the cave? i keep running out of stamina so i dont finish

How can you leave? Because in the 1.0 version y Can’t get out. Only if it’s sleep time. The first entrance ls locked once you pass to the “second level” and I keep getting stucked

How do I get into the caves??? It always says that they are not available for me yet?