DOVETAILING INTERESTS Now you can have it all. Fishing, Watersports, Cruising, and Yamaha outboard power. The 21 H20 OB Ski Fish is the perfect all around boat. The performance of an outboard coupled with Chaparrals Extended V-Plane running surface provide smooth acceleration, faster planing times, and precise handling. Whether you are spending the day cruising with the family or searching out your favorite catch, the 21 Ski Fish can handle it all.