They are just right of Main Street. Use the big block to reach the vines, and climb up, then jump left to reach the roof. You will find the missing translation page from Hammerhead's Journal.
In the underground, spell "open" with the teeth symbols, and collect the missing ingredient for the shark potion (creature bone and key ingredient).
It is in the shark cave
deep in the ancient ruins
in the ancient ruins of shark tooth island
on the roof of the ancient ruins
on top of the ancient ruins
Go to the right from Main Street and you will see the sign "Ancient Ruins".
No. The "temple" is the ancient ruins to the right.
go to the ancient ruins and you will see a cave
It is a sandy, touristy island with ancient ruins and one very nasty shark.
The ruins are just to the right of the first village (Main Street) on Shark Tooth Island.
Go to the right from Main Street and you will see the sign "Ancient Ruins".
on top of the cave in the Ancient Ruins