Just off the tip of Mexico’s Yucatán Peninsula is a small island largely untouched by tourism, despite its proximity to Cancún. Isla Holbox might go unnoticed entirely, except for some unique visitors who come to its warm ocean waters each summer. Their presence is hard to ignore, since they average 40 feet long and weigh 15 tons. These are gentle whale sharks—not whales at all, despite their size, but actually the world’s largest fish. Docile and unafraid, they allow us to swim close enough to observe the checkerboard pattern of pale yellow dots and stripes covering their thick gray skin. Departures are throughout July. For a 6 day small group trip prices start at $3,995 USD. For more information contact This email address is being protected from spambots. You need JavaScript enabled to view it..