About South Wall
The Cabo San Lucas Marine Park, located at the southern tip of the Baja California Peninsula where the Pacific Ocean meets the Sea of Cortez, was designated a protected underwater marine park by Mexico's president in 1973. This protected status helps preserve its rich marine biodiversity, supporting over 800 fish species and thousands of invertebrates, earning the Sea of Cortez the nickname "World's Largest Fish Trap." Dive sites within the park are conveniently accessible, typically a 10-minute boat ride from the marina, and are usually flat calm. While the specific site "South Wall" is not detailed in the provided sources, the broader marine park features walls that extend to depths exceeding 100 meters, catering to technical divers, with recreational depths ranging from 8 to 40 meters. The unique meeting of two major ocean bodies creates dynamic conditions beneath the surface. Coral formations, gorgonians, and sea fans are common sights, providing habitat for diverse marine life. The area is renowned for its seasonal pelagic encounters, with migrating Mobula Rays appearing in spring and autumn when water temperatures change, often seen in schools of tens of thousands. Other common sightings include playful California sea lions, large schools of snapper and jacks, white tip sharks, sardines, turtles, eels, puffers, groupers, seahorses, and nudibranchs. Humpback whales also visit the region during winter for breeding and calving. Visibility generally ranges from 30 to 60 feet during winter (January to May) and an excellent 50 to 150+ feet from June to December. Diving in the park typically involves clear and calm waters with minimal current, making for a generally accessible experience. Due to the proximity of the sites, divers can often enjoy multiple dives exploring the distinct ecosystems, from walls to resident marine mammal colonies. The calm conditions within the bay ensure reliable diving, even when external weather is rough.
Highlights
Season calendar
Nov – Apr (Peak)
Socorro season open (Nov–May) for giant mantas and hammerheads. Cozumel bull sharks Dec–Mar. Cenotes excellent year-round. Best overall conditions.
May – Oct (Transition & Sea of Cortez)
Socorro closing, Cozumel still good. Whale sharks arrive at Isla Mujeres Jun–Sep. From August, the Sea of Cortez comes alive: Midriff Islands offer massive sea lion colonies and schooling mobulas. September and October bring world-class diving around La Paz and Cabo Pulmo with whale sharks, hammerheads, and bull sharks on the Explore Baja route.
Dive site facts: South Wall
- Depth
- 8–40 m
- Current
- Mild
- Entry
- Liveaboard or dayboat
- Level
- Beginner
- Dive type
- Wall, Reef
- Region / port
- Mexico
- Coordinates
- 22.8678° N, 109.9801° W
Conditions & Currents
Conditions within the Cabo San Lucas Marine Park are typically flat calm with minimal current, especially within the bay area. This means the dive site is usually accessible and suitable for a wide range of divers, even when external weather conditions are rough. Visibility generally ranges from 30 to 60 feet during the cooler months of January to May, improving significantly to an excellent 50 to 150+ feet from June to December. No thermoclines or specific entry/exit techniques beyond standard procedures are mentioned, indicating a generally straightforward diving environment. Divers can expect a relaxed experience due to the calm waters and predictable conditions, allowing for ample observation of marine life.
Why dive South Wall from a liveaboard?
South Wall is one of Mexico's signature dive sites. A liveaboard sleeps you on the water and puts you in the water for three to four guided dives per day, including dawn and night dives that day-boat operators rarely offer. You skip the daily commute back to port and reach quieter, less-crowded sites in the same region on a single trip.
Below are the liveaboards that include South Wall on their Mexico itineraries.
Liveaboards diving South Wall
These liveaboards may visit South Wall on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Nautilus Explorer
Mexico

Valentina
Mexico

Rocio del Mar
Mexico

Nautilus Under Sea
Mexico

Nautilus Belle Amie
Mexico

Quino del Mar
Mexico

Nautilus Gallant Lady
Mexico
Dive sites similar to South Wall
Agustín Melgar shipwreck
Mexico
The Agustín Melgar, also known as the C-54, is a 56-meter (185-foot) former minesweeper that rests on a sandy bottom at 24 meters (80 feet) south of Puerto Escondido within the Loreto Bay National Park.
- Suitable for
- Intermediate
- Current
- Mild
- Access
- Liveaboard only
- Depth
- 12–24 m
- Theme
- Wreck
Arco Iris, or "Rainbow" in Spanish, is a prominent dive site located near Brumel Island (Penahuaste), approximately 8km north of Playa Potrero in Costa Rica.
- Suitable for
- Beginner
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- Access
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Bahía de La Paz
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Bahía de La Paz serves as the capital of Baja California Sur and the primary gateway to the Sea of Cortez, a region famously dubbed the "world's aquarium" by Jacques Cousteau due to its exceptional biodiversity.
- Suitable for
- Advanced
- Current
- Mild
- Access
- Dayboat
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- 17–27 m
- Theme
- Big animals / Reef
Bahía de los Ángeles
Mexico
Bahía de los Ángeles, nestled in the northern Sea of Cortez, is a remarkable dive destination primarily known for its seasonal aggregations of whale sharks.
- Suitable for
- Intermediate
- Current
- Moderate
- Access
- Liveaboard only
- Depth
- 3–15 m
- Theme
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Bajo Alcyone
Costa Rica
Bajo Alcyone, a submerged seamount near Cocos Island, stands as a world-renowned dive site.
- Suitable for
- Advanced
- Current
- Strong
- Access
- Liveaboard only
- Depth
- 25–40 m
- Theme
- Drift / Seamount
Bajo de la Ballena
Mexico
El Bajo, often referred to as Bajo de la Ballena, is a prominent seamount situated approximately eight miles northeast of La Paz, Mexico.
- Suitable for
- Advanced
- Current
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- Access
- Liveaboard or dayboat
- Depth
- 18–35 m
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