There is a forest ranger post, ASOPARQUE which was created in 1997, which is the association for the development for the Marino Ballena National Park. Both work within the park Ph + (506) 743-8236/ Ph + (506) 8946-7134. https://parque-nacional-marino-ballena.business.site/ Entry 6US$ and you can get more information here. This national marine park was created in 1989 to protect the coral reef and 5375 hectares of ocean that surrounds Ballena Island, to the south of Uvita. The humpbacked whales (are so called because of the way they come to the surface before they dive) scientific name is megaptera noveangleae, they visit the Pacific Coast during August, September and October and whales come here from the southern hemisphere in December, January and Febuary, March and April they migrate to this area and you can see those from the north between December, March and April. The island has colonies of rabihorcados magnos, piqueros patiazules, and other sea birds, as well as many green iguanas and basilisk lizards. All year round you can find dolphins and bottle nosed dolphins, The park includes 13km of sandy and rocky beaches, mangroves, river mouths and rocky mountain areas: a total of 110 hectares of land. This is where the woodpeckers and carey turtles lay their eggs during the rainy months of May and November and especially in September and October. The six types of Costa Rican mangroves are represented within this park: two species of black mangroves and red mangrove, the piñuelo, the white and the gelí. The forest ranger post is in the village of Bahía, and along the Uvita coast. You can hire boats from Bahía to Ballena Island for between 15 and 20 US$ per hour: you can dock in the island and go snorkeling. This is best done during low to medium tide, above all when the tides aren’t extreme.
The Marino Ballena National Park is located in Costa Ballena and belongs to the Osa Conservation Area. It extends from the Morete river mouth to Punta Piñuela. In 1989 it was declared National Marine Park, and its limits extended in 1992. It has a land area of 284 acres and 13,276 acres of sea. Here you´ll find the famous Whale’s Tail, with a length of about 2296 feet and a width of 820 feet, and is the world’s third largest sandbank. During the low tide, you can walk to its very end. The entry fee to the park is $6 for foreigners, and $2 if you are a national or resident. Keep your ticket; it allows you to access Playa Uvita, Playa Colonia, Playa Ballena, and Playa Piñuela the same day.
OUTSTANDING NATURAL RESOURCES The dolphin populations are resident, so it is usual to see them more often. Turtle watching and nesting on our beaches is from July to December.
Humpback whale watching seasons: Southern migration, August to November and Northern population from December to March.
Beach and Sun: The beach extension is 9.32 miles; there are 4 official points of entry: Uvita, Colonia, Piñuelas, and Ballena. The Colonia Beach sector has been classified as one of the best beaches to learn surfing.
Paso de Moises (Moises Path): The famous whale tail, if you want to walk along the tombolo you should do it at low tide. This is a natural formation created by the convergence of two currents. Snorkeling is allowed, however, the use of swimming fins is not, unless the tide is low.
Birdwatching: Ballena Island and Tres Hermanas Rock are great places for birdwatching.
Arco Beach: One of the most beautiful beaches of the park, access is possible during low tide through the Ballena sector.
Camping: Is allowed only in Colonia and Piñuelas, bonfires and consumption of alcoholic beverages are prohibited in the Park. Pets are not allowed.