Dive Site: Los Islotes

About Los Islotes

Los Islotes, nestled north of Espíritu Santo Island in the Sea of Cortez, Mexico, is renowned for its vibrant marine life, especially its large colony of California sea lions. Consisting of two islands or large rock formations, this site offers divers unique opportunities to interact with playful sea lions in their natural habitat. While sea lions often engage with divers at the surface, exploration below reveals a fascinating reef and wall topography adorned with coral and teeming with various fish species. The dive site generally features calm waters and substantial visibility, making it an excellent location for both underwater photography and general exploration. The resident sea lion colony, numbering over 400, makes Los Islotes one of the most interactive dive sites globally. Divers often encounter these intelligent and curious animals, who are known to circle and even gently engage with divers. Beyond the charismatic sea lions, the area's reef and rock formations host diverse marine inhabitants like king angelfish, surgeonfish, and occasional manta rays. Although sea lions are friendly, divers should always remember they are wild animals and maintain respectful interactions. Accessibility is typically via boat from La Paz, which is approximately two hours north of Cabo San Lucas. Los Islotes caters to a wide range of dive experience levels, from beginners enjoying the sea lion interactions near the surface to more experienced divers exploring the deeper reef and wall structures. Currents can be limited to medium, but generally, conditions are favorable for all, with a focus on observing and interacting with the unique ecosystem.

Dive site facts: Los Islotes

Depth

8–30 m

Current

Limited, medium

Visibility

20–30 m

Water temperature

16–30 °C

Entry

Boat

Level

All levels

Dive type

Reef dive, wall dive, boat dive, snorkeling

Region / port

La Paz, Baja California Sur

Coordinates

24.595, -110.402

Conditions & Currents

Currents at Los Islotes are generally limited to medium strength, making it accessible for most diver levels. However, conditions can vary, so divers should be prepared for gentle to moderate water movement. Visibility consistently remains excellent, typically ranging from 20 to 30 meters, often reaching up to 35 meters in peak conditions. Water temperatures fluctuate seasonally, from a high of 30°C in September to a low of 16°C in February, potentially necessitating thicker wetsuits during cooler months. While thermoclines can occur, surface conditions are often calm due to the sheltered nature of the Sea of Cortez, though winds can cause chop. Divers should always conduct a boat entry and exit, maintaining situational awareness of boat traffic around the islands.

Marine life & sighting chances

California sea lion

Year-round (closed June-August) · common

King angelfish

common

Cortez angelfish

common

Bigeye trevally

occasional

Hawksbill turtle

occasional

Sardines

common

Yellow surgeonfish

common

Hammerhead shark

rare

Mobula ray

occasional

Whale shark

rare

Dive profile & how the dive runs

Diving at Los Islotes typically involves a boat entry directly into the water near the rocky islets. You can opt for two main dive routes: a southern, shallower exploration or a northern, deeper route. The southern dive often includes an interesting cave system. The northern dive offers potential encounters with pelagic species in deeper waters. Most divers prefer to stay shallow to interact with the sea lions, often circling the islands at depths of 8 to 15 meters, moving through archways and swim-throughs. The sea lions themselves will approach and play, often initiating interaction. A typical dive time is limited to 45 minutes to ensure respectful interaction and to avoid over-stressing the animals. Safety stops are generally performed in the shallower reef areas, often still surrounded by playful sea lions.

Underwater photography

Los Islotes presents exceptional opportunities for wide-angle photography, capturing the playful California sea lions in their natural habitat, often against the dramatic backdrop of the rocky islands or schooling fish. A wide-angle lens (e.g., 8-15mm fisheye or 16-35mm rectilinear) is ideal for these interactions. Consider using strobes to bring out the vibrant colors of the angelfish, corals, and other reef life, especially in deeper sections or within the caves. For sea lion interactions, be prepared for fast-moving subjects; high shutter speeds and continuous autofocus will be beneficial. Respect the animals' space, letting their natural curiosity guide interactions, rather than chasing them. Buoyancy control is paramount, particularly in shallower areas, to protect the delicate golden cup corals and maintain clear visibility.

Combine with nearby dive sites

• El Bajo Seamount

  Known for schooling hammerhead sharks and other pelagics, requiring advanced diving skills.

• La Reina

  A pinnacle site featuring Panamic green moray eels, sea lions, and occasional giant Pacific manta rays.

• Salvatierra Wreck

  A ferry wreck at a moderate depth, now an artificial reef teeming with marine life.

• Swanee Reef

  A shallow reef site with coral heads, schooling fish, and remnants of the Salvatierra wreck, suitable for novices.

• San Rafaelito

  Another sea lion colony offering similar playful interactions.

Getting there & logistics

Access to Los Islotes is primarily via day boat trips departing from La Paz, Baja California Sur. The nearest major international airport is Los Cabos International Airport (SJD), about two hours' drive from La Paz, or La Paz International Airport (LAP) for more direct regional flights. Dive trips to Los Islotes usually last a full day, often combining one or two dives with opportunities for snorkeling. Charters provide all necessary dive facilities. There are no specific permits or fees required directly by divers for Los Islotes, as these are typically covered by tour operators as part of the Espiritu Santo Archipelago National Park entrance fees. Los Islotes is frequently combined with other nearby sites like El Bajo or La Reina to create diverse dive itineraries.

Safety & environment

Los Islotes is generally considered safe for all levels of divers, but interactions with wild sea lions require caution. While juvenile sea lions are playful, adult bulls can be territorial, especially during breeding season. Divers should maintain a respectful distance from the rocks where bulls reside. The nearest recompression chamber is located in La Paz. Comprehensive dive insurance is highly recommended, covering emergency medical care and evacuation. In case of an emergency, evacuation would be by boat back to La Paz. Always follow your dive guide's instructions regarding conduct and interaction with marine life, ensuring both diver and animal safety. Be mindful of currents, which can be moderate, and always plan your gas supply accordingly.

Who it suits — and who it doesn't

FAQ

Los Islotes FAQ

Liveaboards diving Los Islotes

These liveaboards may visit Los Islotes on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Nautilus Explorer

Mexico

25 guests44.8 m

$230/day

Valentina

Mexico

20 guests38.1 m

$430/day

Rocio del Mar

Mexico

20 guests33.5 m

$392/day

Nautilus Under Sea

Mexico

19 guests32 m

$261/day

Nautilus Belle Amie

Mexico

32 guests44.8 m

$299/day

Quino del Mar

Mexico

20 guests36 m

$392/day

Nautilus Gallant Lady

Mexico

12 guests35.36 m

$332/day