a flock of birds in flight over a grassy field with trees in the background under a cloudy sky at caño negro wildlife refuge in

wildlife refuge costarica caaplusmn onegro birds nature conservation travel ecotourism sanctuary biodiversity wetlands habitat tropical centralamerica environment protection birdwatching tourism landscape natural reserve adventure explore outdoors scenic ecosystem flora fauna greenery remote peaceful getaway destination hiking trekking vacation holiday sightseeing untouched authentic purity heritage sustainable rainforest jungle cloudy serene unspoiled tranquility