Tours

General Tours

Mayaland Tours. Tours to Mérida, the Uxmal ruins, and the flamingo park at Celestún are available. Self-guided tours to Tulum and Cobá can also be arranged; the agency provides a car, maps, and an itinerary. The agency can also help with accommodations. Calle Robalo 30, Sm 3, Cancún, Quintana Roo, 77500. 998/887-2495; 877/240-5864 in U.S. www.mayaland.com.

Olympus Tours. Specializing in tours around Cancún, the agency can book your reservations to Xcaret, Xel-Há, and other local adventure parks. Av. Yaxchilán, Lote 13, Sm 17, Mza 2, Cancún, Quintana Roo, 77500. 998/881-9030; 786/338-9358 in U.S. www.olympus-tours.com.

Boat Tours

Kolumbus Tours. Eco-excursions to Isla Contoy are available Tues., Thurs., and Sun. on a replica boat of the Pinta. A daily combination tour to Isla Contoy and Isla Mujeres is also offered on board the Maltese Falcon. Punta Conoco 36, Sm 24, Cancún, Quintana Roo, 77500. 998/884-5333; 800/715-3375 toll-free in Mexico. www.kolumbustours.com.

Sea Passion Catamaran. Day trips (which includes a buffet lunch, open bar, and snorkel equipment) to Isla Mujeres, the Riviera Maya, and Tulum are available with this agency. El Embarcadero, Blvd. Kukulcán, Km 4.5, Zona Hotelera, Cancún, Quintana Roo, 77500. 998/849-5573. www.seapassion.net.

Breathing Bubble Tours

B.O.B. (Breathing Observation Bubble) Cancún. B.O.B. Cancún lets you sit on a machine resembling an underwater motor scooter, and steer your way through the reef while wearing a pressurized helmet that lets you breathe normally ($75). El Embarcadero, Blvd. Kukulcán, Km 4.5, Loc E-3, Zona Hotelera, Cancún, Quintana Roo, 77500. 998/849-4440 or. Closed Sun.

Eco Tours

Submarine Tours

AquaWorld's Sub See Explorer. This "floating submarine" is a glass-bottom boat that submerges halfway into the water. Blvd. Kukulcán, Km 15.2, Zona Hotelera, Cancún, Quintana Roo, 77500. 998/848-8327; 877/730-4054 in U.S. www.aquaworld.com.mx.