14 - 16 foot PADDLEBOAT On select Green River, Salmon River, Cataract Canyon and half to 2-day Colorado River trips, you can join the spirited crew of a paddleboat. With a guide in the rear, these smaller boats offer great fun and excitement on the river. When you're ready to relax, simply return to your rowboat, stretch out in the sun, and let the guide do all the work.To see descriptions, simply roll over each letter with your mouse.