Did you know that despite its ominous name meaning “Coffin Island,” Isla de Caja de Muertos is actually one of Puerto Rico’s most pristine natural paradises? This uninhabited island nature reserve, located just 8 km (5 miles) off the southern coast of Puerto Rico near Ponce, boasts some of the clearest turquoise waters in the Caribbean and is home to endangered plant species found nowhere else in the world.
Getting There & Planning Your Journey
Being an island, the only way to reach Caja de Muertos is by boat. Waterland Adventures offers regular boat service from Ponce’s La Guancha Boardwalk (Paseo Tablado La Guancha). The boat trip takes approximately 20-30 minutes each way.
Two main trip options are available:
- 4-hour snorkeling trip: Includes beach time, guided snorkeling, light lunch, and refreshments
- 6-hour full-day charter: Private boat for your group with more time to explore the island, includes lunch, snacks, snorkeling gear, and beach chairs
Reservations are required for both options, and it’s recommended to book in advance, especially during peak season.
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Best Time to Visit & Weather Tips
The ideal time to visit Isla Caja de Muertos is during Puerto Rico’s dry season, from December through April. During these months, you’ll enjoy:
- Temperatures averaging 26-29°C (78-84°F)
- Minimal rainfall and clear skies
- Excellent visibility for snorkeling
- Lower humidity levels
Avoid visiting during the hurricane season (June through November), particularly September and October when storms are most likely. If planning a visit during weekends or holidays, book your boat trip well in advance as they fill up quickly.
For the most peaceful experience, visit on weekdays when fewer local boaters are around, giving you more space to enjoy the small beaches and hiking trails.
Getting Around Locally
Once on the island, the only way to get around is on foot. The island is approximately 2.4 km (1.5 miles) long and 0.8 km (0.5 miles) wide at its widest point, making it entirely walkable.
The main attractions are connected by trails:
- Pelican Beach to the lighthouse: Approximately 1.6 km (1 mile) uphill hike
- Beach area to Almeida Cave: Short detour from the lighthouse trail
- Lighthouse to observation deck: Brief walk past the lighthouse
Wear sturdy, closed-toe shoes for hiking as the trails are rocky and lined with cacti. The island’s dry climate means very little shade, so plan your explorations for morning hours to avoid the midday heat.
Where to Stay
Isla Caja de Muertos is uninhabited and overnight stays are not permitted. Visitors must return to the mainland by the afternoon. The best place to stay when visiting the island is in nearby Ponce, Puerto Rico’s second-largest city.
Recommended accommodation options include:
Hilton Ponce Golf & Casino Resort
Luxury beachfront property with pools, restaurants, and easy access to La Guancha Boardwalk where boats depart for the island.
Hotel Belgica
Historic boutique hotel in downtown Ponce, offering colonial charm and within driving distance to the boat departure point.
Ponce Plaza Hotel & Casino
Centrally located hotel near Ponce’s main attractions with comfortable rooms and modern amenities.
Find Your Perfect Stay in Ponce
Book your accommodation in advance to ensure availability, especially during high season.
Attractions, Sightseeing & Activities
1. Pelican Beach (Playa Pelícano)
The main beach on the island, Pelican Beach features crystal-clear waters and soft white sand. It’s located on the northern, protected side of the island, making it perfect for swimming with gentle waves. The beach has been awarded the Blue Flag certification for its excellent water quality and environmental management.
2. Lighthouse Hike (Faro de Caja de Muertos)
The historic lighthouse, built in 1887, sits atop the highest point of the island. The 30-minute uphill hike rewards you with panoramic views of both sides of the island and the mainland. While the interior of the lighthouse is not well-maintained, the veranda offers spectacular photo opportunities.
3. Almeida Cave
According to local legend, this cave was used by the pirate José Almeida to hide treasure and the body of his beloved. Located off the trail to the lighthouse, it’s an interesting historical site, though exploring the interior is not recommended due to safety concerns.
4. Snorkeling
The waters around the island offer excellent snorkeling opportunities, particularly along the northeastern side where coral reefs are home to diverse marine life. The boat operators typically provide snorkeling gear and guide you to the best spots. Be aware that jellyfish can sometimes be present, so consider wearing a rash guard for protection.
5. Bird Watching
The island is a haven for bird watchers, with pelicans being the most visible species (hence the name of the main beach). Bring binoculars to observe these magnificent birds diving for fish, especially during early morning or sunset hours.
Experience the Best of Isla Caja de Muertos
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Practical Travel Tips
What should I bring to Isla Caja de Muertos?
- Plenty of drinking water (at least 1 liter per person)
- Sun protection (hat, sunscreen, sunglasses, light long-sleeved clothing)
- Sturdy closed-toe shoes for hiking
- Swimwear and towels
- Snacks (though basic food is provided on boat tours)
- Camera (the views are spectacular)
- Cash (no ATMs or card facilities on the island)
- Basic first aid supplies
What facilities are available on the island?
The island has very limited facilities:
- Shaded gazebos with tables near Pelican Beach
- No fresh water sources (no drinking water, showers, or restrooms)
- No food vendors or shops
- No trash collection (pack out what you bring in)
Are there any rules I should know about?
As a nature reserve, Isla Caja de Muertos has several important rules:
- No fishing (the waters around the island are protected)
- No campfires allowed
- No overnight camping
- Take all trash with you when leaving
- Don’t remove plants, animals, or artifacts
- Stay on marked trails to protect the fragile ecosystem
Safety Tips
- The island has no shade except at the gazebos – protect yourself from the sun
- The hiking trails can be challenging in the heat – bring sufficient water
- Be cautious of cacti and thorny plants along trails
- Watch for rocks when entering the water at beaches
- Be aware of possible jellyfish when snorkeling
The Legend of Isla Caja de Muertos
No visit to Isla Caja de Muertos is complete without knowing its fascinating legend. According to local folklore, the island got its name (“Coffin Island”) from a romantic yet tragic pirate tale.
The most popular version tells of José Almeida, a Portuguese pirate who fell in love with a beautiful woman. When she died at sea, the heartbroken pirate brought her body to the island and buried her in a coffin-shaped cave. Over the years, he would return to leave treasures at her grave.
Eventually, locals discovered the coffin, giving the island its distinctive name. While exploring the island, you can visit Almeida Cave, the supposed resting place of the pirate’s beloved, adding a touch of mystery and romance to your adventure.
Dining & Local Cuisine
There are no dining establishments on Isla Caja de Muertos, so you’ll need to rely on the food provided by your boat tour or bring your own snacks. However, before or after your island adventure, Ponce offers excellent dining options featuring authentic Puerto Rican cuisine.
Recommended Restaurants in Ponce:
La Guancha Boardwalk
Where the boats depart for the island, this boardwalk features multiple food kiosks serving fresh seafood, fritters, and cold beverages.
La Cava Restaurant
Located at Hilton Ponce, offering upscale dining with Puerto Rican specialties and international cuisine.
Lola’s Eclectic Cuisine
Downtown Ponce restaurant serving creative takes on traditional Puerto Rican dishes in a charming setting.
Must-Try Puerto Rican Dishes:
- Mofongo: Mashed plantains with garlic, often served with seafood
- Arroz con Mariscos: Rice with mixed seafood
- Empanadillas de Jueyes: Crab turnovers
- Tostones: Twice-fried plantain slices
- Piña Colada: Puerto Rico’s national drink
Ready for Your Isla Caja de Muertos Adventure?
Isla de Caja de Muertos offers a perfect blend of natural beauty, history, and adventure that makes it one of Puerto Rico’s hidden gems. From relaxing on the Blue Flag-certified Pelican Beach to hiking up to the historic lighthouse, from exploring mysterious pirate caves to snorkeling in crystal-clear waters, this small island packs an unforgettable experience.
Whether you’re a nature lover, history buff, or simply seeking a peaceful escape from the mainland, Coffin Island delivers an authentic Puerto Rican adventure that feels worlds away from the tourist crowds.
Plan Your Island Escape Today
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The above is subject to change.
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