Where to find sponges that are always wet

OCEAN

["Think of a vast body of water where marine life thrives."]

This clue plays on the double meaning of "sponges." While we often think of kitchen or bath sponges, natural sea sponges live underwater—hence they’re always wet. The answer "OCEAN" fits because that’s where these real sponges grow, blending a literal fact with a clever twist on the word.