About Punta Tosca
Punta Tosca is a notable dive site located on Socorro Island, which is part of the remote Revillagigedo Archipelago, also known as the Socorro Islands, off the Pacific coast of Baja California, Mexico. This UNESCO World Heritage Site is celebrated for its abundant pelagic life, drawing divers to its unique underwater landscapes. The site features distinctive hardened lava formations that extend from the island's shore into the ocean. These lava fingers create a semi-protected cove, offering a diverse topography. Divers can explore between these outcroppings or along the perimeter of the inlet, observing more coral and colorful reef inhabitants compared to other sites in the archipelago. While depths can extend significantly, divers should remain mindful of their depth, especially when encountering captivating marine life. Punta Tosca is renowned for interactions with playful bottlenose dolphins and giant oceanic manta rays. Divers frequently encounter whitetip reef sharks, and lobster are also common. The site also supports a variety of smaller, colorful reef fish like Panamic green moray eels, Guinea fowl pufferfish, and Moorish idols, adding a macro element to the dive. Although primarily a reef dive, pelagic sightings are frequent here. Diving Punta Tosca typically occurs via liveaboard, which is the only way to access the Revillagigedo Archipelago. Currents can be present and may be strong, requiring divers to sometimes hold onto rocks while waiting for marine life to appear. Divers are encouraged to monitor their depth, particularly during exciting encounters, as the site offers opportunities for deeper exploration.
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: Punta Tosca
- Depth
- 0–38 m
- Current
- Moderate
- Entry
- Liveaboard only
- Level
- Advanced
- Dive type
- Reef, Reef
- Region / port
- Mexico
- Coordinates
- 18.7291° N, 110.9168° W
Conditions & Currents
Currents at Punta Tosca can range from medium to strong, often requiring divers to seek shelter or use reef hooks to maintain position, especially when observing pelagic animals. A negative entry may be beneficial depending on conditions. The site's unique lava topography provides some natural protection, allowing for varied dive profiles along or between the rock formations. Visibility is generally very good, typically ranging from 10 to 50 meters, though thermoclines are possible in the region due to converging currents. Divers must be attentive to depth, as the excitement of interacting with large marine life can be distracting, leading to deeper excursions. Due to the potential for strong currents and deeper profiles, this site is best suited for advanced divers with experience in open ocean conditions.
Why dive Punta Tosca from a liveaboard?
Punta Tosca 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 Punta Tosca on their Mexico itineraries.
Liveaboards diving Punta Tosca
These liveaboards may visit Punta Tosca 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
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