For many underwater photographers, capturing a frogfish on film is a rare event. So how does a photographer find two?

Small Hope Bay on Andros is home to the world’s third longest barrier reef, so it’s little surprise that the Bahamas attract the big stuff.

Scuba diving in a cenote near Chichén Itzá, an underwater archaeologist explores an otherworld strewn with Maya offerings, from pottery to human bones.

Watch mobula rays — aka devil rays — feeding and flying off Baja California, Mexico, in what National Geographic says could be the largest school ever filmed.