Expedition Day 5: Golfo Dulce / Osa Peninsula Go ashore on the western side of the bay, in the pristine waters of Playa Blanca, on the Osa Peninsula. Head inland to meet and share with inspiring local families living in remote communities and working with cocoa, heart of palm, and sugar cane. Hike mature rainforest or kayak in peaceful waters in Golfo Dulce. By special arrangement, visit Latin American Sea Turtles (LAST) Association on the Osa Peninsula and assist researchers with data collection and hear presentations by the staff at LAST including a talk by the dedicated researchers, working so hard to positively impact sea turtle conservation.