Isla Mujeres One of the treasures of the Mexican Caribbean, the very thin Isla Mujeres is a short ferry ride from Cancun but a universe away. There is great diving here, great fishing and a quaint little town. There are also a range of Isla Mujeres hotels that belies its size, led by the Isla Mujeres Palace. But this is really a place to do nothing at all. And that’s a marvelous thing.