Arctic Abyss
After the continue barrel, head down and left. Go up past 3 starfish.
At the top use Enguarde's A-charge to the right (to cross an opening
before the water level drops).
After the first DK barrel floating in the water go right then
up, then use Enguarde's "A"-charge to open a door where
the wall is marked with a lone banana.
At the [G] head down and left, drop into the first vertical shaft
and swim through the right-hand wall.