Mobula rays are not small creatures. They can measure two meters — about six and a half feet — from wingtip to wingtip, and they’re known for being jumpers.

So naturally the view must’ve been breathtaking when National Geographic’s new show, Untamed Americas, managed to capture a school of tens of thousands of mobula rays swarming and flying just off the coast of Baja California, Mexico. Schools of these rays can be regularly seen in the Gulf of California — though usually the schools are nowhere near this large — and some have been known to breach the water as much as two meters into the air.

These aren’t the biggest of the eagle rays — that would be the manta ray, which can measure 23 feet from tip to tip. Fortunately, mantas do not travel in schools this large…a small fishing boat caught in the middle of a manta ray breach might have some problems.