In this episode we find out how river lock systems work. ADVENTURE: Andy tells Chuck that he can lift a boat! Chuck does not believe him so they head off to the Trent-Severn Waterway. We find out how locks work, why they are eco-friendly and explore all there is to know about the Trent Severn. THE LAB: When Dr. G. decides he needs a river cruise vacation, he sets out to build an eco-friendly boat. GP decides it’s a great opportunity to return Fish Stick to her native habitat.

Originally released by Distribution360, 2012. Streaming video file encoded with permission for digital streaming by Infobase on June 26, 2015.

Tent-Severn Waterway (2:18); --Fathom Five National Marine Park (3:49); -- Big Chute Marine Railway (3:22); -- Calumet: Skater Tales (1:35); -- Historic Locks and Canals (3:50); -- Michael's Creature Feature (1:45); -- Kawartha Turtle Trauma Centre (3:59); -- Credits: Rivers: Planet Echo Season 3 (1:01); .