Another option if you don't have the money for a drysuit is a good drytop. We use them for rock hopping and short swims to boulders while surf fishing for stripers and if you have a good one you stay pretty dang dry. Just wear it over your waders and keep the waist tight, when you go over your head all you end up with is wet hands and a wet face. Bomber gear makes the best ones in my opinion. The ones with latex wrist and neck gaskets are the best. Since you're all sealed up they also keep you warm, almost too warm at times.