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Natural Reserve · Puerto Rico

Caja de Muertos Natural Reserve

Caja de Muertos Natural Reserve is a pristine island reserve off the southern coast of Puerto Rico, famed for its crystal-clear waters, sandy beaches, and diverse marine and terrestrial ecosystems ideal for snorkeling, hiking, and wildlife observation.

Natural Reserve1,344 acres (land and marine area)4+ Trails

Designation

Natural Reserve

Total Wilderness Area

1,344 acres (land and marine area)

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Caja de Muertos Natural Reserve

Caja de Muertos Natural Reserve is a pristine island reserve off the southern coast of Puerto Rico, famed for its crystal-clear waters, sandy beaches, and diverse marine and terrestrial ecosystems ideal for snorkeling, hiking, and wildlife observation.

Wilderness Landscape & Natural Heritage

Caja de Muertos Natural Reserve encompasses Caja de Muertos Island, a small uninhabited island approximately 8 miles south of Ponce, Puerto Rico. Covering a significant marine and terrestrial area, this reserve protects the island's unique coastal ecosystems, coral reefs, sea grass beds, and sandy beaches. The island's geography includes limestone cliffs, sandy coves, and the notable lighthouse that overlooks the Caribbean Sea. Ecologically, Caja de Muertos hosts specialized coastal vegetation, nesting sea turtles, and a variety of seabirds, making it an important habitat for conservation. Historically, the island was named 'Coffin Island' due to its shape. Today, the reserve allows visitors to explore through regulated eco-tourism activities such as hiking the trails to the lighthouse, swimming in pristine waters, snorkeling among vibrant reefs, and wildlife viewing. There are no on-island accommodations, so day trips from Ponce or nearby ports are common. The reserve's protected status helps preserve delicate marine life and natural landscapes. Its remote beaches, relatively untouched by development, provide a tranquil escape and an exceptional setting for photography and nature study. Caja de Muertos is a gem for visitors seeking both natural beauty and quiet solitude within a Caribbean island reserve setting.

Field Guide · Natural Reserve
Adventure Destinations

Notable Destinations Near Caja de Muertos Natural Reserve

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

Mountain Forest Adventure at Bosque Estatal Toro Negro★ 8.8⌖ 17 miHiking
Bosque Estatal Toro Negro

Mountain Forest Adventure at Bosque Estatal Toro Negro

Explore Bosque Estatal Toro Negro near Jayuya, Puerto Rico. Moderate trails lead to the island’s highest peak and scenic waterfalls. Ideal for hiking, bird watching, and swimming in natural pools. Accessible by car, this forest offers diverse nature and cultural history year-round.

Santa Beach Serenity★ 4.5⌖ 22 miSnorkeling
Santa Beach

Santa Beach Serenity

Explore Santa Beach in Guánica, Puerto Rico, known for its crystal-clear waters and serene ambiance. Enjoy easy snorkeling, beachcombing, and coastal hiking. It's perfect for those seeking tranquility with family-friendly activities available year-round.

SnorkelingView Details→
Waterfall Adventure at Salto Curet in Maricao, Puerto Rico★ 7.8⌖ 28 miHiking
Salto Curet

Waterfall Adventure at Salto Curet in Maricao, Puerto Rico

Explore a 1-mile round trip hike to Salto Curet waterfall near Maricao, Puerto Rico. This moderate trail includes stream crossings and rocky terrain. Enjoy swimming in the clear plunge pool and photograph the lush forest surroundings. Best visited in the dry season for safer conditions.

Waterfall Wonders at Cascada Charco Prieto, Bayamón★ 7.2⌖ 39 miWaterfall Swimming
Cascada Charco Prieto

Waterfall Wonders at Cascada Charco Prieto, Bayamón

Cascada Charco Prieto near Bayamón offers an easy-access waterfall with swimming in a natural pool, surrounded by tropical forest. Visitors enjoy gentle hiking trails, birdwatching, and photography in a peaceful setting not far from the city.

Waterfall SwimmingView Details→
Coastal Charm at Buyé Beach, Cabo Rojo★ 7.2⌖ 39 miSnorkeling
Buyé Beach

Coastal Charm at Buyé Beach, Cabo Rojo

Buyé Beach in Cabo Rojo, Puerto Rico offers calm, clear waters ideal for easy snorkeling and kayaking. This quiet beach near protected bird habitats is perfect for families and nature lovers seeking relaxation and light water activities with beautiful coastal views.

SnorkelingView Details→

Key Wilderness Highlights

✦ Historic Caja de Muertos Lighthouse offering panoramic Caribbean views✦ Coral reef ecosystems supporting diverse marine life for snorkeling✦ Secluded white sand beaches perfect for swimming and sunbathing✦ Nesting grounds for endangered sea turtles
Wilderness Recreation

Outdoor Adventures in Caja de Muertos Natural Reserve

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

Park Recreation

Hiking

Available in Caja de Muertos Natural Reserve
Park Recreation

Wildlife Viewing

Available in Caja de Muertos Natural Reserve
Park Recreation

Snorkeling

Available in Caja de Muertos Natural Reserve
Park Recreation

Beachcombing

Available in Caja de Muertos Natural Reserve
Park Recreation

Photography

Available in Caja de Muertos Natural Reserve
Park Recreation

Swimming

Available in Caja de Muertos Natural Reserve
Park Recreation

Picnicking

Available in Caja de Muertos Natural Reserve
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Caja de Muertos Natural Reserve.

Passes & Fees

Entrance Requirements & Interagency Passes

Entrance fees apply; permits required for boat access to the island, often arranged through authorized tour operators.

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 Caja de Muertos Natural Reserve

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

Ponce
⌖ 6.89 miles
Gateway Basecamp

Ponce, Puerto Rico

A vibrant coastal town blending cultural heritage with diverse outdoor adventures from mountain hiking to coastal paddling.

December to AprilExplore Town
Juana Díaz
⌖ 12.55 miles
Gateway Basecamp

Juana Díaz, Puerto Rico

A coastal Caribbean town offering diverse outdoor adventures from river canyon hikes to ocean paddling amidst lush tropical landscapes.

December to AprilExplore Town
Santa Isabel
⌖ 15.12 miles
Gateway Basecamp

Santa Isabel, Puerto Rico

A coastal-agriculture town offering lush lowland landscapes, coastal access, and authentic rural Puerto Rican outdoor experiences.

December to AprilExplore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Caja de Muertos Natural Reserve

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.