Rules for Fish

Exploration Stage: Picturesque Bay
From: Detective
Description: It seems that camouflage alone isn't enough to fool all these colorful fish here. To get a closer look, I'll need to move just like they do. How about this new tool?
Completed: It's a pretty good monofin, isn't it? Swimming stealthily is harder than it looks. With this, we can show those fish—and the investigators—that we mean business.