09:00 Departure time for the Palo Verde Wild Life Sanctuary. Scientists from all over the world come to study this rich ecosystem that combines rivers, marshlands, mangroves and dry forest. Our river cruise will take you on the Tempisque River, the most important on in Guanacaste province, at the time of admiring the natural beauty of this park and looking for crocodiles, monkeys, iguanas and thousands of birds that migrate to Palo Verde. 17:00 Arrival time back at the hotel.