Directly below the point on the surface the light points to. There's a grotto down there.

There's a legend about an underwater cavern called the Sea God's Grotto located somewhere in this area.

Touring deep-sea caves with Group 3.

Or the bottom of a sea.

There's something here… On the bottom.

Time to check the bottom.

And there's something on the bottom. I'll see what it is.

You'd think there's some war down deep as well, with half the fish killin' the other half.