ASUPMATOMA’s story began in 1990, when Mr. René Pinal noticed how sea turtles returned year after year to nest on the beach in front of his home. Moved by the need to protect them from predators and human impact, he joined forces with local and international supporters to create an organized conservation effort. In 1995, ASUPMATOMA was officially founded as a non-profit organization, and it has continued its work tirelessly ever since.
FUNDING
The foundation is primarily sustained through the personal savings of its founder and president, René Pinal; contributions from individuals who believe in the mission; and on-site activities such as workshops, educational camps, annual turtle releases, and bicycle rentals in Cabo San Lucas.
Spending a day with ASUPMATOMA’s conservationists means gaining a deep understanding of the fragile balance that sustains marine ecosystems. Their work protects not only sea turtles but also the broader food chain, which, if disrupted, would have serious consequences for humanity. These conservation efforts help prevent ecological imbalances and contribute to the long-term health of coastal environments.
Volunteers play a crucial role, as limited staffing can hinder day-to-day operations. Donations are equally vital, covering the costs of beach patrols, nest protection, and the daily supplies needed by professionals and volunteers. And when people ask, How can we protect sea turtles, the answer begins right here, by supporting the teams who monitor nesting sites, safeguard hatchlings, and maintain clean, safe beaches where turtles can thrive.
A DAY AT THE TURTLE CAMP
Upon arriving at the camp, visitors are welcomed by a multidisciplinary team of marine biologists, veterinarians, university interns, and passionate volunteers. The experience begins with an introduction to the sea turtle species found in Baja California Sur. Of the six species recorded globally, five inhabit the region: two feed in local waters, and three come ashore to nest.
Species Present in the Area: Loggerhead Turtle: Travels across the entire Pacific—up to 370 days—from Japan and Hawaii to reach Mexican waters before returning to its nesting grounds. Hawksbill Turtle: Feeds exclusively in Mexican waters. Critically endangered due to illegal hunting for its ornate shell, which is used in jewelry, accessories, and decorative items. Leatherback Turtle: Distinguished by its thick, leathery shell. One of the largest sea turtles, weighing between 400 and 600 kg, is capable of migrating along both American coastlines. Black Turtle: Rare in Baja California Sur. Sightings have increased in recent years, though nesting on local beaches remains uncommon due to the region’s desert climate. Olive Ridley Turtle: The most common species in the area. Recognizable by a small hump and known for participating in spectacular mass nesting events called arribadas, where thousands of females come ashore simultaneously—a phenomenon observed only in Mexico, India, and Costa Rica.
Mexico enforces strict penalties of 3 to 9 years in prison for stealing eggs, trading turtles, or purchasing items made from their shells.
NEST PROTECTION
The next stage of the visit involves traveling by ATV to the protected corral where relocated nests are kept safe. Marine biologist Abilene Colin, Director of ASUPMATOMA, explains the patrol process along the 13-kilometer stretch of beach known as El Suspiro. Dawn patrols allow staff to identify fresh tracks or females currently nesting, minimizing the risks of predation, dehydration, or human interference.
Once a turtle has finished nesting, the eggs are carefully collected, following strict protocols, and transferred to the corral. The artificial nests replicate the traditional pitcher-like shape: a 15 cm neck and a depth of 45 cm. This structure protects the eggs from coyotes, stray dogs, birds, and tidal erosion, especially during full moons when the beach becomes more dynamic. During the Sea Turtle Nesting Season in Los Cabos, these measures become even more crucial, as conservation teams work around the clock to ensure every nest is safely relocated and given the highest chance of survival.
Every nest is monitored daily. The scientific data gathered—nest counts, development rates, and hatchling success—supports ongoing conservation research. Over 25 years, the Association has observed remarkable growth: in 1995, around 100 nests were recorded; today, the number has increased to approximately 1,500 per season. The results are clear: long-term conservation programs do work and must be supported to protect both marine and terrestrial fauna from human threats.
NEST CLEANING
Cleaning the nests is crucial. Delays in removing hatchlings can lead to larvae infections through their umbilical area, often resulting in death. Temperature control is equally important, as incubation varies by season—40 to 45 days in summer and up to 60 days in winter.
Hatchling removal is done with extreme care, using gloves to prevent contamination. The process involves separating live and dead hatchlings, along with developed and undeveloped eggs. All findings are recorded to support future scientific and statistical studies.
THE RELEASE: THE MOST MEANINGFUL MOMENT
After weeks of monitoring and care, the most rewarding stage arrives: releasing the hatchlings into the ocean. This moment reflects the dedication, effort, and love of everyone involved in the conservation process.
Releases take place at sunset to reduce dehydration and allow hatchlings to use the sun’s reflection to orient themselves toward the sea. They are released at least 50 meters from the shore, ensuring they imprint the beach’s unique characteristics—a process known as philopatry, which guides them back decades later to lay their own eggs. Despite the challenges, this ritual keeps hope alive: only one in every thousand hatchlings will reach adulthood.
THE RELEASE: THE MOST MEANINGFUL MOMENT
After weeks of monitoring and care, the most rewarding stage arrives: releasing the hatchlings into the ocean. This moment reflects the dedication, effort, and love of everyone involved in the conservation process.
Releases take place at sunset to reduce dehydration and allow hatchlings to use the sun’s reflection to orient themselves toward the sea. They are released at least 50 meters from the shore, ensuring they imprint the beach’s unique characteristics—a process known as philopatry, which guides them back decades later to lay their own eggs. Despite the challenges, this ritual keeps hope alive: only one in every thousand hatchlings will reach adulthood.
BEYOND TURTLES: WHALE MONITORING
During whale season, ASUPMATOMA also conducts whale sightings to contribute to population censuses. This research also helps strengthen conservation strategies for these majestic species. These monitoring efforts align closely with the growing interest in whale watching in Los Cabos, allowing visitors to appreciate these giants responsibly while supporting ongoing conservation work.
When you book Cabo excursions and activities in Cabo San Lucas, including unforgettable whale watching experiences, through Lifestyle Villas- Cabo San Lucas, you’re guaranteed a safe, seamless, and truly memorable adventure. This is also the perfect opportunity to enjoy unique wildlife encounters, from witnessing majestic whales up close to learning about sea turtles in Mexico during their nesting season.
To secure your preferred times, we always recommend reserving activities at least 72 hours in advance. Our specialists are ready to help you customize the perfect getaway, complete with top excursions and activities in Cabo San Lucas, luxury resorts, and beautiful vacation villa rentals.
Start planning your dream vacation and elevate your stay at a Cabo San Lucas vacation rental today by calling 1-888-655-9589