The prodigious Sierpe River boasts the most extensive wetland and mangrove system in all of Costa Rica. It is fed from the mystical Sierpe Lagoon where it starts, flows all the way out to the Pacific Ocean, and later returns back up the river with saltwater as high-tide rises. The vast Sierpe River system provides its inhabitants with an abundant supply of fish, rich mangrove ecosystems from which mollusks can be harvested, infinite river channels that serve as transport to neighboring communities, and an incredible diversity of wildlife. The activity is taking place within the canals of the mangrove forest in the river. The Colectivo boat departs at 7.15 am and takes around 25 minutes to reach the area where the kayaks are waiting for us to explore this incredible area. The boat picks you up at 12.00 and takes you back to Drake Bay.