Del restaurante La Forja, 300 metros norte, Playa Grande, Santa Cruz, Guanacaste.

Protecting Leatherback Sea Turtles at Playa Grande’s Las Baulas National Marine Park

There’s something unforgettable about seeing a leatherback sea turtle emerge from the ocean and make her way onto the beach to nest. It’s one of nature’s most powerful moments, and Playa Grande, located within Las Baulas National Marine Park in Guanacaste, Costa Rica, is one of the few places in the world where it happens. Between October and March, these massive sea turtles return to the shores where they were born, laying the foundation for the next generation.

But these ancient creatures are in serious danger. Leatherbacks are critically endangered, facing a long list of threats that include poaching, fishing nets, light pollution, habitat loss, and climate change. Even unintentional harm from visitors or development can affect their survival.

Las Baulas National Marine Park was created to protect these turtles and their nesting grounds, and its efforts are making a difference. Still, they can’t do it alone. If you’re visiting Playa Grande, your actions matter more than you might think.

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Start by keeping the beach clean and natural. Avoid leaving trash or food scraps, as they attract predators like raccoons that dig up turtle nests. If you’re staying nearby, use red light bulbs and keep curtains closed at night to prevent confusing hatchlings that follow light to the ocean. Please don’t bring dogs to the beach, as they can disrupt nesting or dig into nests. And no matter how curious you are, never touch or dig into a turtle nest.

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One of the best ways to experience the magic of nesting season is through a guided night tour with a certified local guide or certified companies that offer these tours. These tours should follow park guidelines and give you the chance to witness a turtle laying her eggs without causing harm. Outside the nesting season, Playa Grande is still a beautiful destination with world-class surf, and nearby Tamarindo offers even more to explore.

Las Baulas is more than just a turtle sanctuary. It’s home to a rich mix of wildlife, mangroves, estuaries, and marine life. By visiting responsibly and supporting eco-conscious businesses, you help protect the entire ecosystem.

Every small step counts. Whether it’s picking up after a beach day, choosing a low-impact hotel, or simply spreading awareness, your choices help preserve this incredible place and give leatherback sea turtles a fighting chance to keep coming back.