Humacao Nature Reserve


Tours, Excursions, Adventure Places to Visit

Wonderful way to spend a weekend in Porta Antillas (East Region) of Puerto Rico!

The Humacao Nature Reserve located in the Porta Antillas (East Region) on the southeast coast of Puerto Rico. This area offers many great things to do for those looking for nature, adventure or a relaxing time.

The reserve is comprised of three management units: Mandri, Santa Teresa and Pterocarpus Swamp with a total area of approximately 3,186 acres. The Nature Reserve was designated in 1986 for preservation, conservation, and restoration, although the area has been under the administration of the Department of Natural and Environmental Resources since 1984. The Reserve is of great importance for wildlife conservation and for the development of related recreational activities.

The Reserve has diverse natural resources of particular ecological importance. Those resources include swamps, marshes, and a complex of lagoons with extraordinary value for wildlife. The system is nurtured from the waters of the Anton Ruiz River, runoff and seawater, which enters through the Anton Ruiz canal making the system an estuary. An estuary is basically a place where fresh water mixes with sea water.

Estuaries are one of our Planet most productive ecosystems. Many commercial and sport valuable fish species spend part of their life cycles in estuaries. These systems contribute a constant flow of organic matter into the sea, which constitutes the base of a complex food web.


The Humacao Nature Reserve is located in the humid sub-tropical life zone. Annual precipitation is an average of 88 inches (2038 mm) with a rainy season from June to December. There is a relative dry season from January to May. Humacao coastal zone is regularly exposed to the rains and winds associated to storms and hurricanes. The zones are a high risk due to the fact that most of these storms enter through the southeast coast of the Island.


Our office and recreational facilities are located at road No.3 km 74.3 (Humacao to Naguabo) at the Santa Teresa unit. Operating hours for the rentals and services are: Wednesdays through Sundays and holidays on Monday from 9:00 am to 4:00 pm. Gates closes at 5pm. The Reserve Management office and personal are available Mondays to Fridays from 7:30 am to 3:30 pm. For additional information call 787-852-6088 or 787-852-6058

Recreational Activities 

Morrillo Cycle

Bike rental one hour $7.00 pp.

Water Sports and Eco Tours

Kayaks and stand up paddleboards (SUP) $12.00 pp (one hour)

Pedal boats $10.00 one hour ride on the Mostuo Channel

Guided Interpretative Hikes $3.50 pp. Only with two weeks of advance reservations for groups of more than 10 persons.

Flor de Maga Gift Shop

Souvenir concession that also prepares workshops where you can create a handmade craft to keep. They include all the materials. Cost per person is $10.00.

La Reserve Cafè

Snack concession at the visitor's pavilion. If you are bringing a group they prepare lunches for $7.50 pp. reservations are needed with two weeks in advance. Meals include drinks.


One hour kayak rental, one hour bike rental, a snack and a souvenir for only $20.00 pp.

Note: The rentals will be before 4:oo pm and for the package you need to be before 2:30 pm.


Carr #3 Km 74.3 Barrio Río Abajo, Humcao, Porta-Antillas-East-Region, 00741

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  • Affordable

Best For Whom

  • All Ages
  • Groups
  • Students

Best For What

  • Nature
  • Off The Beaten Path
  • Relaxation


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