When nearly all of tourists go to Isla Mujeres, locals choose to visit the greater peaceful Isla Holbox for every day or two. The island is surrounded by blue waters as well as the shallow lagoon separating it from your mainland draws in migrating flamingos, pelicans and whale sharks (from https://mexicotouristattractions24442.newbigblog.com/34491456/the-greatest-guide-to-mexico-tourist-attractions