lagoons and biodiversity at caño negro wildlife refuge, costa rica

wildlife refuge costa rica caaplusmn negro wetlands biodiversity tourism nature conservation ecosystem waterfowl ducks birds habitat natural reserve travel ecotourism flora fauna adventure sightseeing tropical rainforest environment sustainable sanctuary preservation area exploration birdwatching water jungle forest green ecology species observation preserve wildlifephotography naturelovers wetland birding heron lagoon costarica onegro wildliferefuge