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Ostional National Wildlife Refuge wilderness guide
National Wildlife Refuge · Costa Rica

Ostional National Wildlife Refuge

Ostional National Wildlife Refuge is an essential nesting site for olive ridley sea turtles, offering visitors the unique opportunity to witness mass turtle nesting events.

National Wildlife Refuge210

Designation

National Wildlife Refuge

Total Wilderness Area

210

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Ostional National Wildlife Refuge

Ostional National Wildlife Refuge is an essential nesting site for olive ridley sea turtles, offering visitors the unique opportunity to witness mass turtle nesting events.

Wilderness Landscape & Natural Heritage

Located on the Pacific coast of Costa Rica, Ostional National Wildlife Refuge is best known for its role in protecting the olive ridley sea turtles that nest on its beaches. Established in 1984, the refuge encompasses 85 hectares of riverine and coastline habitat that supports a range of flora and fauna. The beach is a critical site for the arribada, a natural phenomenon where thousands of turtles come ashore to lay their eggs. The refuge also includes mangroves and tropical dry forests, which are vital for the ecological diversity of the area. In addition to turtle watching, visitors can enjoy pristine beaches and explore rich biodiversity. The local community collaborates closely with conservation efforts, offering tours that educate about marine life and conservation. The refuge appeals to wildlife enthusiasts and photographers eager to capture the sight of sea turtles in their natural environment.

Field Guide · National Wildlife Refuge
Adventure Destinations

Notable Destinations Near Ostional National Wildlife Refuge

Scenic viewpoints, outdoor landmarks, and notable points of interest within 30 miles.

Seaside Bliss at Playa San Juanillo★ 8.2⌖ 4 miSnorkeling
Playa San Juanillo

Seaside Bliss at Playa San Juanillo

Explore Playa San Juanillo, a dual-bay beach in Guanacaste, Costa Rica. Perfect for snorkeling, kayaking, and beach hiking year-round with calm waters and diverse marine life. Enjoy a peaceful visit near Cuajiniquil, with gentle trails and stunning coastal views.

SnorkelingView Details→
Beach Bliss: Playa Garza, Guanacaste★ 7.8⌖ 7 miSnorkeling
Playa Garza

Beach Bliss: Playa Garza, Guanacaste

Enjoy Playa Garza's serene beach in Guanacaste with options for snorkeling, surfing, and fishing. Accessible by car, it's a perfect spot for adventure seekers looking for a tranquil getaway.

SnorkelingView Details→
Beach Bliss at Playa Carrillo★ 6.5⌖ 16 miBeach Relaxation
Playa Carrillo

Beach Bliss at Playa Carrillo

Enjoy the tranquility of Playa Carrillo in Guanacaste, Costa Rica. This serene beach offers pristine sands, ideal for relaxation, snorkeling, and wildlife watching. A peaceful escape with clear waters and minimal crowds, perfect for a family-friendly visit.

Beach RelaxationView Details→
Horseback Riding Along the Beaches of Samara★ 7.5⌖ 19 miHorseback Riding
Samara

Horseback Riding Along the Beaches of Samara

Explore Samara's coastline on horseback with options for beach, jungle, or sunset rides. Friendly for all riders, the tours provide opportunities to view local wildlife and learn about Costa Rican culture. Accessible year-round with great photography potential.

Horseback RidingView Details→

Key Wilderness Highlights

✦ Witness the yearly arribada of olive ridley sea turtles.✦ Explore the diverse ecosystems of mangroves and tropical dry forests.✦ Enjoy guided tours led by knowledgeable locals about marine conservation.✦ Experience the serene and picturesque beaches of the refuge.
Wilderness Recreation

Outdoor Adventures in Ostional National Wildlife Refuge

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Park Recreation

Hiking

Available in Ostional National Wildlife Refuge
Park Recreation

Wildlife Viewing

Available in Ostional National Wildlife Refuge
Park Recreation

Photography

Available in Ostional National Wildlife Refuge
Park Recreation

Beach Walking

Available in Ostional National Wildlife Refuge
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Ostional National Wildlife Refuge.

Passes & Fees

Entrance Requirements & Interagency Passes

Entrance fee required, tours often booked through local associations.

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Adventure Basecamps

Gateway Towns Near Ostional National Wildlife Refuge

Stay, dine, and gear up in these mountain towns and scenic basecamps surrounding the park.

Nosara
⌖ 3.07 miles
Gateway Basecamp

Nosara, Guanacaste

A tranquil beach town with a vibrant surf culture, renowned for its eco-friendly focus and diverse outdoor activities.

December to AprilExplore Town
Sámara
⌖ 13.84 miles
Gateway Basecamp

Sámara, Guanacaste

A relaxed beach town offering a mix of water and land adventures ideal for travelers seeking sun-soaked paddling, surfing, and nature exploration.

Dry Season (December to April)Explore Town
El Guapote
⌖ 16.60 miles
Gateway Basecamp

El Guapote, Provincia de Guanacaste

An energetic riverside locale amid the Guanacaste dry tropical forest, offering rugged whitewater paddling, bird watching, and nature immersion with easy access to Costa Rica's Pacific coast.

December to April (Dry Season)Explore Town
Nicoya
⌖ 19.39 miles
Gateway Basecamp

Nicoya, Guanacaste Province

A vibrant hub offering access to some of Costa Rica’s best beaches, national parks, and outdoor activities.

December to AprilExplore Town
Nicoya
⌖ 19.39 miles
Gateway Basecamp

Nicoya, Costa Rica

A vibrant town offering serene beaches and lush tropical landscapes, perfect for outdoor enthusiasts seeking coastal and jungle adventures.

December to AprilExplore Town
Nicoya
⌖ 19.39 miles
Gateway Basecamp

Nicoya, Guanacaste

A laid-back town on the Nicoya Peninsula, offering a blend of beach and jungle adventures for nature enthusiasts and thrill-seekers alike.

December to AprilExplore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Ostional National Wildlife Refuge

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.

12 bookable experiences

Availability, pricing, meeting details, and fulfillment are provided by the applicable operator or booking partner.