Isla Holbox (hol-bosh) has sandy streets, colorful Caribbean buildings, lazing, sun-drunk dogs, and sand so fine its texture is nearly clay. The greenish waters are a unique color from the mixing of ocean currents, and on land there's a mixing too: of locals and tourists, the latter hoping to escape the hubbub of Cancún.
'Hoping' is the operative word, because while there are no throbbing nightclubs here, and while it's beautiful, it's not exactly peaceful (what with the throngs of people and constant buzzing of noisy gasoline-powered golf carts), unless you really do get away from it all to the more remote beaches either by golf cart or boat.
It's a fantastic spot for wildlife. Lying within the Yum Balam reserve, Holbox is home to more than 150 bird species, including roseate spoonbills, pelicans, herons, ibis and flamingos. In summer, whale sharks congregate nearby.