My wife and I toured the Osa Peninsula during January. We stayed at five different locations. Casa Horizontes came out on top. The guest house is located at the top of a hill overlooking Drake Bay. You have a beautiful ocean view from the dining area. We stayed five days and saw a wide variety of wildlife including macaws, toucans and white-faced monkeys. Hiking trails run along the coast giving the visitor access to several unspoiled beaches. In addition, the plants and flowers that surround the house are very exotic.
Our hosts, Yami and Pedro were spectacular. They knew all about the area, Corcovado National Park visits, boat excursions, etc.
Our stay was delightful, and our room was comfortable.