Green Fantasy Cave Escape

This is one of the most beautiful islands that I have ever visited. To me it looks like a fantasy world. Oh, look at that underground cave. I think that it will be fun to enter the cave. Oh my God, where is the exit of this cave. I just cannot find the exit. I am probably trapped inside. I can see so many different types of shells and other items that must have come here from the sea. I am not very sure but I think that I can use some of these items to unravel the secret exit from the cave.