The best time to have a Vacations in Costa Rica birdwatching ecotourismwill depend on the type of vacation you want. For nature lovers that like an ecotour to see a little bit of everything, all year round is good. Nature is always there to amaze you. You will not be disappointed even on a rainy day. For a birding tour, if you are interested in any kind of bird, year-round is fine. But if you have any special interest in some spices, it will be better to coordinate the best moment of the year.