Playas Caleta and Caletilla have a quite different atmosphere from those in the main part of the bay. Both have almost legendary status in Mexico, but it’s the party families come for, not tranquillity. The beaches are actually very small, divided by a small rocky outcrop – they tend to be jam-packed at weekends, with a boisterous, carnival-like atmosphere and every inch of sand covered with beach umbrellas and towels. You wouldn’t come here for seclusion, but it’s loads of fun, the water is almost always calm and the beach is reasonably clean. You can sit at shaded tables on the sand, surrounded by Mexican matrons whose kids are paddling in the shallows, and be brought cheap drinks from the cafés behind. From here you can take a water taxi across to Isla La Roqueta, hang out at super-cool Boca Chica, or rent kayaks.