Playas en Costa Sur

Caja de Muertos Island

Ponce, Puerto Rico

Isla Caja de Muertos
Isla Caja de Muertos

Caja de Muertos Island also known as Coffin Island is a small island located on the south central coast of the island of Puerto Rico just 4.8 nautical miles from the south coast of the Municipality of Ponce. The island measures approximately 2.75 km. long and 1.85 km. wide, with a total area of 412.22 cords of dry and arid land. The reserve also includes the Cayo Morrillito Cay and Cayo Berberia Cay keys.

Nicknamed one of Puerto Rico’s top enchanting attractions, Caja de Muertos is a secluded and uninhabited nature reserve with one of the most pristine settings you’ll find on the island. This wonder natural island is ideal for visitors seeking to reconnect with nature away from the noise of the city.

The beautiful scenery that this small island offers is amazing. You will feel like the owner of the whole island.

Bathed by the transparent waters of the Caribbean Sea and located in one of the driest and most arid areas of Puerto Rico, Caja de Muertos Island treasures a diversity of natural resources framed in a spectacular panorama. On the island you will find mangroves, coral reefs, sandy beaches, a rocky coast, xerophytic forest (dry and thorny), caves and nesting areas for sea turtles (Hawksbill) and seabirds.

Definitely this piece of land is a natural paradise. The island is a prefect destination for beach and nature lovers looking to experience the pleasures of an uninhabited island free from development. At Caja de Muertos you can walk, bird watch, explore the lighthouse ruins, or just relax in the sun.

Among the activities that you can do once you arrive on the island are diving in a small underwater sled, walking around the island to the lighthouse or to the pier, kayaking along the north coast of the island, walking along the south coast and simply enjoy the beach that is refreshing and energizing.

Caja de Muerto was designated a natural reserve in 1980 managed by DNRA (Department of Natural and Environmental Resources) with the purpose of protecting this area of ​​high natural value to ensure that the uses and activities do not affect its natural resources. The island has remained a protected area since then. It is currently administered by the Puerto Rico Department of Environmental Resources.

Caja de Muertos is a haven for endangered turtles, birds, and marine life. The reserve has unique fauna and flora found here. It is a nature reserve, with beautiful beaches, hiking trails, a lighthouse, and a cave.

The Nature Reserve has a coral reef system of extraordinary beauty and color. Its greatest development is found in the extreme northeast of the island, forming a reef lagoon. Corals serve as nurseries for a diversity of species of underwater animals and protect the coasts by slowing down the water.

The island is home to five beaches: Pelícan Beach, Ensenadita Beach (“Pocitas”), Larga Beach, Guardia Costera Beach (also known as Blanca Beach) and Chica Beach. The island also has fauna and flora not found anywhere else in the world.

Faro Caja de Muertos
Caja de Muertos Islando Lighthouse

The island also has trails that lead to an old lighthouse, a cave, and a longer trail that goes to the other end of the island. The lighthouse built in 1887 that has become a historical point. The road to this lighthouse is steep as it is located on the highest hill on the island; la caul certainly is truly an adventure. You must bring closed and comfortable shoes, insect repellent, water and sunscreen. It will take you about two hours round trip.

Caja de Muertos, its beaches and its keys has been rediscovered by tourists as an isolated paradise since the government began assigning park rangers from the department of natural resources to supervise visitors to the island and protect this island. Peak season is in the summer months, weekends, and holidays with a local crowd of visitors. During the “high season” by tourists from December to April.

The island has facilities such as areas for bathers, visitor center, gazebos, gazebos, picnic areas, DNRA office, an educational center, changing area, portable ecological toilets, dock, paramedics and a guard post. It has no stores, so be sure to bring food and water.

The beautiful scenery that this small island offers is amazing. You will feel like the owner of the whole island. And we know the good docking points where you can enjoy this jewel of the South.

How to get there:
You can get to the island on a ferry that leaves from  La Guancha Boardwalk on Fridays, Saturdays, Sundays and holidays. Departs at 8:30 am and returns at 3:30 pm. The trip to Caja de Muertos takes between 30 and 40 minutes depending on weather conditions. Other options are to coordinate your visit through a local tour operator or to book a private boat.

Attractions and Services:

  • Beach
  • Lifeguard
  • Bathrooms
  • Diving area
  • Boat ride
  • Kite boarding
  • Green areas
  • Kayaking
  • Jet ski
  • Boat ramp
  • Paddle surfing
  • Changing clothes area
  • Recreational fishing
  • Watersports
  • Surfing
  • Snorkeling
  • Security
  • Walking / hiking
  • Dock
  • Visitors Center
  • Gazebos
  • DNRA office
  • Picnic areas

Address and Map:

Physical address:
Caja De Muertos Island
Ponce, Puerto Rico 00716

High Season (May to August)
Low Season (September to April)


  • You can get to the island by ferry, book a private boat or coordinate your visit through a local tour operator.

Rental and Sale Services:

  • Rental of umbrellas and beach chairs
  • Sale and Rental of Water Sports Equipment

Nearby Places:

  • La Guancha Boardwalk
  • Punta Salinera Beach
  • Las Salinas Beach
  • Cañas Beach
  • Matilde Beach
  • Guardia Costanera
  • Blanca Beach
  • Carrucho / Playa Chica Beach
  • Isla de Ratones Beach


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