Sit on Kayak Pedal System : 6 Steps (with Pictures) - Instructables
3 Waters Big Fish 103 Pedal Drive Fishing Kayak — Eco Fishing Shop
Amazon.com : 12' Pedal Fin Drive Powered Fishing Kayak | Sit-on-Top or Stand-Capable | 550 lbs Capacity, Ideal for All Ages | Ideal for Ocean, Lake, or River | Pesca canoas caiaques :
Pedal Drive System 2 Person Fishing Kayak Pedal Drive Motor System Power - AliExpress