Whale Sharks & Manta Rays return to the north waters of Isla Mujeres each summer from May - September! Isla Mujeres is home to the Largest Concentration on the PLANET! You will be able to swim alongside these gentle giants as they swim right on the surface to feed on the fish eggs and plankton in the water. Their sizes range from 20-50+ feet and have beautiful unique spots that are guaranteed to take your breath away! This is an adventure you do not want to miss!!