You go to the very right of the island and there is something called " feed the shark". Click it and click anywhere near the ocean to the left than the shark goes to sleep and you can cross.
A coconut bone and secret ingredient
you need the resting carbonate to make him fall to sleep
you give the shark a type of food that will make him fall asleep
You dont have to make it, you'll find it at one of the stands in shark tooth island. near the shark spotting........
You use it to make the medicine for The great Booga
you have to wear the grass skirt
It doesn't get full. You collect three ingredients and mix them to make a sleeping potion for the shark. (see related question)
Wear a grass skirt. (They are free at Booga Bay.)
you have to get the milk and the bag of the ingredients you need the old bone! then you bring in the he weird guy that makes potions he will make it for you then you feed the shark's then you can swim of that island
Booga Bay is at the far right on Shark Tooth island. You cannot swim to the second island until you have put the giant shark to sleep. Enter the ruins and recover the ingredients to make the sleeping potion.
The caterpillar is just there to make getting through the path more difficult. You will have to move quickly up the side and onto the next block.
The ingredients on Shark Tooth Island are1) coconut milk (from the island vendor on Main Street)2) a dinosaur bone found in the old ruins3) the green "key ingredient" also in the ruins at the far left of the cavesYou also have to have a grass skirt to convince the native man to make the potion for you. He is found at the top of the "tree" next to the ruins..