Sea Turtles: Five Species Nesting in Sri Lanka

Sri Lanka is home to five of the world's seven sea turtle species, making our island a critical nesting ground for these ancient marine creatures. If you've ever wondered about the turtles that come ashore on our beaches or wanted to contribute to their conservation, this guide will tell you everything you need to know about these remarkable animals and the efforts underway to protect them.

The Five Sea Turtle Species in Sri Lanka

Our coastline hosts an incredible diversity of sea turtles, each with distinct characteristics and conservation needs. Understanding these species helps us appreciate why Sri Lanka is so important for global turtle conservation.

Green Turtles

Named for the greenish colour of their fat (not their shell), Green Turtles are among the larger species found in Sri Lankan waters. They're primarily herbivorous as adults, feeding on seagrass and algae. Green Turtles regularly nest on our southern beaches, particularly during peak season from December to April.

Leatherback Turtles

The largest of all sea turtles, Leatherbacks can weigh up to 900 kilograms and are instantly recognisable by their leathery shell rather than a hard carapace. They're deep divers and primarily feed on jellyfish. These critically endangered creatures visit Sri Lankan shores for nesting, making our beaches vital for their survival.

Olive Ridley Turtles

The smallest sea turtle species, Olive Ridleys are named for their olive-coloured shell. They're highly migratory and are known for their unusual mass nesting events called "arribadas." In November 2025, the Sri Lanka Coast Guard released 87 Olive Ridley hatchlings back to the ocean, part of ongoing conservation efforts.^[1]

Hawksbill Turtles

Hawksbills are critically endangered and easily identified by their narrow, pointed beak and beautiful patterned shell. Historically, their shells were harvested for jewellery and decorative items, which devastated populations. Today, they're protected, and our beaches provide essential nesting habitat.

Loggerhead Turtles

Named for their disproportionately large head, Loggerheads are powerful swimmers and primarily carnivorous, feeding on molluscs and crustaceans. They're found in warmer waters and regularly nest on Sri Lankan beaches during the nesting season.

Why Sri Lanka Matters for Sea Turtle Conservation

Sri Lanka's position in the Indian Ocean and our diverse coastal habitats make us a crucial nesting ground for sea turtles. Five of the seven sea turtle species recorded worldwide visit Sri Lankan shores for reproduction.^[5] This concentration of species means our conservation efforts have global significance.

The waters around our island provide ideal conditions for nesting—warm sandy beaches, relatively protected coves, and abundant food sources. Our southern and western coasts, particularly areas like Mirissa, Kosgoda, and Unawatuna, are hotspots for turtle nesting activity.

Understanding the Nesting and Hatching Seasons

Knowing when turtles nest and hatch helps us understand their life cycles and plan conservation efforts effectively.

Nesting Season

Sri Lanka is unique because sea turtles nest here year-round, but the peak nesting season runs from late December through April or early May.^[2] During these months, female turtles emerge from the ocean at night to dig nests in the sand, lay their eggs, and return to the sea. This is the most critical time for conservation work, as eggs are vulnerable to poaching and natural predators.

Hatching Season

Baby turtles typically hatch between late February and mid-June, with peak hatching occurring during this window.^[2] The journey from egg to ocean is perilous—hatchlings face threats from predators, harsh weather, and human interference. Conservation projects work intensively during this period to protect nests and safely release hatchlings.

Conservation Efforts: What's Being Done to Protect Our Turtles

Several organisations and government agencies are actively working to protect sea turtles in Sri Lanka. Understanding these efforts shows how conservation is actually happening on our beaches.

Sri Lanka Coast Guard Turtle Conservation Project

The Sri Lanka Coast Guard has been actively involved in turtle conservation since 2016, managing eight conservation sites along our western and southern coasts.^[1] These sites include Mirissa, Panadura, Wellawatta, Moragalla, Benthota, Hikkaduwa, Unawatuna, and Mt. Lavenia.

The project focuses on hatcheries that provide safe environments for collected and rescued eggs to develop away from predators. To date, the Coast Guard's Turtle Conservation Project has released 193,197 baby turtles to the ocean since 2016.^[1] This represents tremendous progress in giving hatchlings the best chance of survival during their critical early life stages.

Community-Run Hatcheries

Projects like the Kosgoda Sea Turtle Conservation Project operate as community-run facilities where visitors can observe incubation nests, view holding tanks with recently hatched turtles, and participate in regulated hatchling releases.^[3] These centres combine education with hands-on conservation work.

Private Sector Involvement

Hospitality businesses like Anantara Peace Haven Tangalle are collaborating with organisations such as the International Union for Conservation of Nature (IUCN) to protect marine turtles that nest on their beaches and extend conservation efforts across over 100 kilometres of surrounding coastline.^[5]

Major Threats to Sea Turtles in Sri Lanka

Despite conservation efforts, sea turtles face significant challenges that threaten their survival.

• Poaching: Human poachers illegally collect eggs to sell to unethical sanctuaries or as food and traditional medicine
• Unethical tourism practices: Some facilities keep healthy turtles in small tanks, allow tourists to handle them (often resulting in drops and injuries), and keep hatchlings in captivity for extended periods before release, which depletes their energy reserves
• Habitat degradation: Coastal development, pollution, and beach erosion reduce nesting sites
• Marine pollution: Plastic waste and fishing nets entangle turtles and can be ingested, causing injury or death
• Climate change: Rising sea levels and temperature changes affect nesting beaches and hatchling survival rates

How You Can Support Sea Turtle Conservation

As Sri Lankans, we have a responsibility to protect these remarkable creatures. Here are practical ways you can contribute:

Visit Reputable Conservation Projects

If you want to witness turtle releases or learn about conservation, visit established projects like the Sri Lanka Coast Guard sites or community-run hatcheries. Choose facilities that prioritise animal welfare over profit and allow you to observe natural behaviours.

Reduce Plastic Use

Sea turtles mistake plastic bags for jellyfish and can become entangled in fishing nets. By reducing your plastic consumption and properly disposing of waste, you're directly helping turtles survive.

Report Illegal Activity

If you encounter poaching or unethical treatment of turtles, report it to the Sri Lanka Coast Guard or local wildlife authorities. Your information could protect nests and hatchlings.

Volunteer or Donate

Many conservation projects accept volunteers for beach patrols, hatchery work, and community education. If you can't volunteer, donations support essential conservation work.

Educate Others

Share knowledge about sea turtles and conservation with family, friends, and your community. Awareness is the foundation of effective protection.

Frequently Asked Questions

What's the best time to see sea turtles nesting in Sri Lanka?

The peak nesting season runs from late December through April or early May.^[2] During these months, you'll have the best chance of witnessing turtles coming ashore at night. Many conservation projects offer guided night beach patrols during this season.

Can I touch or hold baby turtles at conservation projects?

Reputable projects typically allow supervised observation of hatchling releases but discourage handling to protect the turtles. Handling can stress hatchlings and reduce their survival chances. Always follow the guidance of project staff regarding interactions.

Are there laws protecting sea turtles in Sri Lanka?

Yes, sea turtles are protected under Sri Lankan law. Collecting eggs, harming turtles, or interfering with nesting is illegal. The Sri Lanka Coast Guard actively enforces these protections through their conservation projects and coastal patrols.

How long does it take for turtle eggs to hatch?

Most sea turtle eggs incubate for approximately 45 to 70 days, depending on the species and sand temperature. Warmer sand typically results in faster hatching and a higher proportion of female hatchlings.

What happens to baby turtles after they're released into the ocean?

Once released, hatchlings instinctively head to the ocean. They face many challenges—predators, currents, and navigation difficulties—which is why only a small percentage survive to adulthood. This is why protected nesting and careful hatchery management are so critical.

Can I volunteer with sea turtle conservation projects?

Yes, many projects welcome volunteers for various roles including night beach patrols, hatchery guarding, data collection, and community education.^[2] Volunteer positions are available year-round, though peak activity occurs during nesting and hatching seasons.

Taking Action for Sri Lanka's Sea Turtles

Sea turtles have survived for over 100 million years, but their future now depends on our actions. As Sri Lankans, we're privileged to share our beaches with five remarkable species that travel thousands of kilometres across our oceans. The conservation work happening along our coasts—from the Sri Lanka Coast Guard's hatcheries to community-run projects—shows that protection is possible when we commit to it.

Whether you choose to visit a conservation project, reduce your environmental impact, or support these efforts financially, you can make a difference. Our sea turtles don't just belong to Sri Lanka—they're part of our global heritage. By protecting them, we're ensuring that future generations of Sri Lankans will experience the wonder of witnessing these ancient creatures return to our shores.

Sources & References

1. Sri Lanka Coast Guard Turtle Conservation Project — Sri Lanka Coast Guard News
2. Sri Lanka Sea Turtle Conservation — The Mighty Roar
3. Kosgoda Sea Turtle Conservation Project — Sri Lanka 800 Route
4. Sea Turtles Conservation Support | Volunteer in Sri Lanka 2026 — Volunteer World
5. Sri Lanka Turtle Conservation | Saving Turtles at Anantara — Anantara