|Whale shark by Howard Hall (Isla Mujeres Island)|
According to the description, whale sharks and manta rays gather annually at Isle Mujeres to feed on tuna and snapper spawn.
The video was posted on Vimeo by Howard Hall Productions. Howard and Michele Hall are natural history filmmakers specializing in marine wildlife and marine environmental films. Together they have produced numerous films for television including several episodes of the PBS series Nature, a National Geographic Special, and the five-part PBS series Secrets of the Ocean Realm. (http://www.howardhall.com/)
Photo is a screenshot