Baja California Sur

Cabo Pulmo
Near Baja California's southern tip is Cabo Pulmo. In the 1990s, it banned fishing, and its coral reefs became protected sites. As a result, its marine life has become extremely varied and plentiful.
In Cabo Pulmo, a licensed dive guide will take you on a 45-minute excursion. You can see the wreck of the cargo boat El Vencedor, where you'll encounter many vibrant fish. Whales, eels, turtles and a bull shark could also show up.

Cabo Pulmo Divers, a popular store, is open 24 hours a day. Look for a building with a giant turtle painted on the front.

Lapaz

As the capital of Baja California Sur, La Paz offers visitors access to a great range of diving in the southern Sea of Cortez. One of the biggest attractions here is the whale sharks that visit La Paz Bay in October and November when plankton blooms are at their richest. Swimming with these gentle giants is a humbling experience, and one of the highlights of a La Paz trip. Also in La Paz Bay, the hammerhead shark nursery, which has been decimated by fishing in recent years, is regenerating, and sightings of these once abundant sharks are becoming more frequent again. Please note, La Paz Bay is closed for swimming with whale sharks from May until early-October each year.

Further offshore, the renowned El Bajo seamounts are the best place to encounter oceanic pelagics, with mobula rays, hammerhead sharks, dolphins, marlin, and tuna all taking turns to steal the show.

For a unique experience, the sea lion colonies at Isla Los Islotes are great fun to dive amongst, with dozens of curious and playful youngsters providing a circus of entertainment to willing spectators. Just as entertaining is watching the show from the surface, and many visitors choose to snorkel rather than dive. The sea lion colonies are closed for breeding from 1 July to 31 August each year.

Expect fish with psychedelic hues when diving near La Paz. You could also run into a whale shark or manta ray, its fins at full mast. Several dolphin species inhabit this area, too, and shipwrecks loom below.

So there you have it: locales for the best scuba diving in Baja, if not the best scuba diving in Mexico. In the mood for some diving adventures, now? Experience Mexico's beauty from a shimmering new perspective. Come on in! The water's great!

Los Islotes Sea Lion Colony
An amazing colony of more than 400 wild California sea lions surrounded by rocks and fish of all colours. There are two main dives: the southern, shallow one with an interesting cave and the northern one, deep and with chances of looking at pelagic fish. Open from September 01 thru May 31.

La Paz & Isla Partida // El Bajo (Marisla)
Three underwater mounts located between 52 and 83 feet of the surface, known all over the world for attracting pelagic fish like tuna, green eels, dolphin fish, sharks and one of the best spots to dive with hammerhead sharks.

La Paz & Isla Partida // La Reina Islet
Very close to the Jacques Cousteau Island (Cerralvo), La Reina is an islet with a very attractive dive between 30 and 90 feet. You will be able to spot barracudas, skipjacks, also seasonal Giant Pacific Mantas (July-August) and with luck even Whale Sharks.

La Paz & Isla Partida // Salvatierra Ferry Wreck
After crashing into Swanne Reef on June 19, 1975, the Salvatierra Ferry (IMO: 5257191) sank without human loss, very close to the reef. Divers from all over the world can enjoy looking at fish of several species, starfish, corals and snails. Also moray eels can be found in the debris field.

La Paz & Isla Partida // San Rafaelito Lighthouse / Lobos Rock
Located very close to our marina, it is a very easy dive and interesting for divers of all levels. It has a shallow area and cliffs to 60 ft deep full of marine life. About 80 California Sea Lions inhabit the rocks, and you can observe large quantities of fish and some curious white tip sharks. Night diving can be programmed so you can find sleeping parrot fish, rays and octopus.

La Paz & Isla Partida // Swanee Reef
Natural reef located south of Espíritu Santo Island, a short ride from our marina. Famous for the huge amout of fish that attracts sea lions, sea birds, you will find nudibranches, octopus, rays, and moray eels. Well known for being the reason of the Salvatierra Ferry wreck.

La Paz & Isla Partida // Fang Ming Wreck
Artificial Wreck located on the west coast of Espíritu Santo Island, in front of El Corralito. A former Chinese cargo ship trying to transport undocumented citizens to California, it became disabled and adrift until it was intercepted by the Mexican Navy, who donated it to create this artificial reef. Sank on November 18, 1999, it's full of fish and wreck divers will be able to explore inside. Between 48 to 66 ft.

La Paz & Isla Partida // El Bajito
Rocky reef with shallow dives between 30 to 40 feet, currents. For begineers thru advanced divers. Alleys made of rock and coral you can swim thru. Lots of underwater life, ocassionally sea turtles, mobula rays and amber jack.

La Paz & Isla Partida // Whale Shark Refuge Waters
Whale Shark feeding waters at La Paz bay. For licensed boats and crews only. Snorkeling only.

Ref : https://www.mexpro.com/, https://www.padi.com/, https://www.bluewaterdivetravel.com/