The glowing Mosquito Bay is a vision of bizarre beauty. Thanks to a bioluminescent microorganism, the water is a cool electric blue, looking somewhat like a fantastical sci-fi lagoon. Kayak or hop into a clear-bottomed pontoon boat to glide along the neon waters. Swimmers and snorkelers will adore the pristine, undeveloped beaches. Keep an eye out for the playful feral horses that gallop along the dunes, or visit the stately ceiba tree that’s been keeping watch over the highland for three centuries.