According to Deb's site they do...
Bikes and boats
A variety of watercraft are available for rent at OPR (Old Port Royale). These include watermice, sailboats, paddle boats, canoes and pontoon boats. The watermice can accommodate a maximum load of 300 lb. and typically hold one adult or an adult with a child. Pontoon boats can accommodate up to eight adults. Don't plan on sailing off in one of these boats to MGM or the Magic Kingdom; the lake doesn't extend beyond the grounds of the CBR.