Bigger is better. the longer the kayak the better it tracks, which will make a big difference when paddling against tide, wind, current or all three. I'd say go 14 feet or more if you can. Kayaks are amazingly stable, so, unless you're a big guy, don't think you need a boat real wide in the beam. It will slow you down. A rudder or skeg is a big help--if you don't buy a boat with one at least consider a boat that you can add one to later. If you get a sit in kayak, make sure it has water tight bulkheads. This will keep things dry, as well as keep the kayak from sinking if you should tip it (an extemely rare occurance--in 10 years of yak fishing i've never come close to tipping it). Make sure your boat is made of a durable material like polyprothelene (sp?). fiberglass boats look nice and are fast, but you'll be dragging your boat over mussel beds and rocks so you want it to be able to take a beating. don't hesitate to buy a used yak--they are nearly indestructible. if you have a local kayak rental place, check with them to see if they have any used boats--they often will sell them off at the end of a season. most importantly--have fun!

[This message has been edited by D. Micus (edited 04 March 2006).]