Las Baulas National Marine Park
National Park Marine park in Guanacaste protecting leatherback turtle nesting
Coastal park on Costa Rica’s Guanacaste coast protecting Playa Grande, a major leatherback turtle nesting beach; visitors come for turtle‑watching tours, beaches and estuary boat trips.
Las Baulas National Marine Park is a protected coastal and marine area in Guanacaste Province on Costa Rica’s north Pacific coast that safeguards important sea turtle nesting habitat, notably for the leatherback turtle.
The park contains long sandy beaches such as Playa Grande, coastal mangroves, estuaries and nearshore reef areas. It is best known for sea turtle nesting and for beach-based activities including surfing and birdwatching in the estuaries.
The protected area was created to conserve leatherback nesting habitat and adjacent coastal ecosystems; ongoing management emphasizes nest monitoring, patrols and regulated visitor access to reduce disturbance.
The park lies on the northern Pacific shoreline of Guanacaste, adjacent to Playa Grande and northwest of the resort town of Tamarindo.
- Nesting season: October to February is the main leatherback turtle nesting season, and guided, permit-regulated night patrols are used to protect nesting females and nests.
- Access: Day trips and short drives from nearby towns such as Tamarindo provide the most common visitor access; parking and visitor facilities are limited at beach trailheads.
What to See #
- Playa Grande: The park's principal sandy nesting beach, frequently monitored for leatherback turtle nests and also used by surfers and beachgoers.
- Mangrove estuaries and nearshore waters: Coastal mangrove estuaries and nearshore waters that support birdlife, juvenile fish and boat-based wildlife tours.
How to Get to Las Baulas National Marine Park #
Las Baulas spans beach areas near Tamarindo and the town of Playa Grande in Guanacaste Province. From Tamarindo, Playa Grande is a 25-40 minute drive (about 20 km) north across the estuary-most vehicles use the bridge on the Liberia-Tamarindo road (Route 152/21). Regular taxis and private shuttles operate from Liberia (Daniel Oduber Quirós International Airport ~60-90 minutes away). For nesting tours, meetups are typically in Playa Grande or Tamarindo; operators provide specific pickup instructions.
Tips for Visiting Las Baulas National Marine Park #
- If the goal is to see nesting leatherback turtles, join an authorized nighttime ranger-led tour-unlicensed tours are illegal and disturb the animals.
- Stay in Playa Grande or Tamarindo and book tours in advance for peak season (Oct-Mar).
- Bring a red-light headlamp (white light is prohibited during nesting watches) and dress quietly-white clothing reflects and disturbs turtles.
Best Time to Visit Las Baulas National Marine Park #
Best visited between October and March for leatherback nesting; dry season offers sunnier days but larger crowds.
Weather & Climate near Las Baulas National Marine Park #
Las Baulas National Marine Park's climate is classified as Tropical Savanna - Tropical Savanna climate with consistently warm temperatures year-round. Temperatures range from 21°C to 35°C. Abundant rainfall (1727 mm/year), wettest in September with a pronounced dry season.
January
January is warm with highs of 32°C and lows of 21°C. The driest month with just 1 mm and mostly sunny skies.
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February
February is hot, feeling like 29°C. Almost no rain and clear sunny skies.
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March
March is hot, feeling like 30°C. Almost no rain and mostly sunny skies.
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April
April is the hottest month, feeling like 31°C. Moderate rainfall (32 mm).
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May
May is hot, feeling like 32°C due to high humidity. Heavy rain (212 mm) and mostly overcast skies.
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June
June is hot, feeling like 30°C with oppressive humidity. Heavy rain (322 mm) and mostly overcast skies.
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July
July is hot, feeling like 30°C with oppressive humidity. Significant rainfall (123 mm) and mostly overcast skies.
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August
August is hot, feeling like 30°C with oppressive humidity. Heavy rain (216 mm) and mostly overcast skies.
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September
September is warm with muggy conditions (dew point 24°C). The wettest month with heavy rain (377 mm) and mostly overcast skies.
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October
October is warm with muggy conditions (dew point 24°C). Heavy rain (324 mm) and mostly overcast skies.
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November
November is warm with muggy conditions (dew point 23°C). Regular rainfall (90 mm) and partly cloudy skies.
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December
December is warm with muggy conditions (dew point 22°C). Light rainfall.
