lagoon at caño negro wildlife refuge with invasive gamalote grass, costa rica

wildlife refuge costa rica caaplusmn negro lagoon gamalote paspalum invasive ecosystem tourism nature conservation wetlands biodiversity habitat flora fauna birdwatching hiking adventure tropical rainforest preservation environment natural reserve travel ecotourism exploration birding water jungle forest green ecology species observation preserve wildlifephotography naturelovers wetland heron costarica onegro wildliferefuge