yes
A giant open clam shell.
The largest shell belongs to the giant clam, Tridacna gigas, whose shell can grow to several hundred pounds, with a length of about 5 feet.
It's in the clam near the entrance to the hydra cave. Wait for it to open then swim through the clam to pick it up.
It is a giant clam.
They are different creatures
The giant clam.
the ocean
no
In the water
no
A clam will spray a stream of water when disturbed. Also, a clam will shut it's shell tightly when disturbed.