The Akua knife from Gear Aid is a solid tool to have on hand for wet work and play. Whether you’re diving, boating, snorkeling, paddling or otherwise mucking around by the water, it can attach easily to your PFD, deck, BCD or leg. It releases easily but stays in place when you need it to. It has a 3 in. TI-coated blade with straight and serrated edges and a line cutter. The tip, however, is a blunt pry and screw edge so you can dig into some oysters, turn a screw or open a treasure chest. It is a full tang 420 stainless steel in a quick drain sheath. $30 puts one in your pocket.