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Golfo Dulce Whale Heritage Area
Golfo Dulce, Costa Rica

Golfo Dulce Whale Heritage Area

Witness humpback whales nurturing their calves and see playful dolphins surrounded by pristine beaches and untouched rainforest.

Celebratory events or festivals
Boat-based wildlife tours

Golfo Dulce, Costa Rica, is a rare gem where pristine beaches meet untouched rainforest. Here, you can witness both northern and southern humpback whales nurturing their calves and see playful dolphins year-round.

Golfo Dulce is a tropical fjord located on the Pacific coast of Costa Rica. Is one of the few areas in the world where untouched rainforest habitat meets pristine beaches, with some of the world’s most interesting biodiversity. Year-round resident dolphins and migrant calving humpback whales call these waters “home”.

Top photo: Dave Hamilton

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Stories

Human-cetacean conflict solutions

Human-cetacean conflict solutions

National regulation guidelines and strategies for whale and dolphin watching have been developed to ensure responsible interactions.

The National Institute of...

Conservation success

Conservation success

There has been significant interest in developing Marine Protected Areas and other designations in Golfo Dulce and the surrounding area for the benefit of...

Education and research

Education and research

Throughout the year, education programmes, cetacean research and citizen science are carried out in the Golfo Dulce communities.

Free events are offered at the...

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Experiences

Golfito Whale Festival

Golfito Whale Festival

Celebratory events or festivals

The Golfito Whale Festival is an event held in the Golfo Dulce region, one of the most biodiverse areas of the country. The festival usually takes place in September and lasts for several days. Its main objective is to raise awareness about the importance of the conservation of whales and other marine mammals that migrate through Costa Rican waters.

The Golfito Whale Festival represents a unique fusion of nature, culture and sustainable tourism in Costa Rica. It contributes to the protection of whales, promotes local culture and benefits the local economy, while attracting travelers seeking an authentic and conscious experience with nature.

Educational workshops

Educational workshops

Various workshops have been held on marine life, cetacean watching regulations (this course was nationally certified), conservation strategies, and the importance of cetaceans to both the ecosystem and local culture, led by marine biologists, government workers and community leaders.

Species & habitat

Golfo Dulce is a rich and important marine area for whales and dolphins. There are 7 cetacean species recorded, including bottlenose dolphins, pantropical spotted dolphins, false killer whales and humpback whales. Occasionally other species are seen, such as Bryde's whale, spinner dolphins and killer whales.

Golfo Dulce provides a suitable breeding and calving ground for Northeast and Southeast Pacific populations of humpback whales. The calving seasons run from July to November (Southern populations) and November to March (Northern populations).

There are also year-round resident and non-resident dolphin populations. Bottlenose dolphins are more likely to be seen close to shore compared to the pantropical spotted dolphins.

Did you know?

Migrant humpback whales from the Northeast and Southeast Pacific populations arrive in different seasons; the northern population migrates to the wintering grounds between December and April, whereas those from the southern zones make their journey from June to October.

Tour boat observations have found that dolphins are regularly seen swimming near/around visiting whales. A scientific paper on these interactions is currently being prepared with the collected data.

Dolphins are also seen relatively frequently interacting with (“harassing”) venomous sea snakes, a behaviour noted in a few other areas of the world but not to the extent observed in Golfo Dulce.

Bottlenose and pantropical spotted dolphins in Golfo Dulce exhibit playful behaviours that resonate with local traditions of ingenuity and connection to nature. They are often seen pushing coconuts, wrapping seagrass on their fins, or pulling leaves for fun.

Humpback whales in Golfo Dulce use a unique local landmark, Widow Rock, for "spa sessions" to scrape off barnacles. Mothers teach their calves this behaviour, passing down knowledge and strengthening the bond between generations. By removing barnacles, humpback whales improve their hydrodynamics, supporting their long migrations and overall health. This behaviour also benefits the marine ecosystem by recycling organic matter into the ocean's food chain.

Threats

The threats faced by cetaceans in Golfo Dulce include global issues like climate change, in addition to localised threats such as water contamination and increasing boat traffic (noise pollution and risk of propellor strikes).

The bottlenose dolphin population is an “inshore” ecotype, with fewer than 500 individuals along the Pacific coast of Costa Rica and Panama. Numerous individuals show signs of a skin disease (lacaziosis-like disease).

Building development is also potential threat, as there is a new marina proposed in one of the hotspot areas for humpback whales.

Several local and regional programmes and projects are working to address these threats, including some carried out by research institutes, universities, or NGOs.

Supporters & Assessors

Each Wildlife Heritage Area is assessed by a species or habitat expert from a reputable non-profit organisation or academic institution. The assessor represents a supporting organisation able to provide the advice, information, and contacts needed to complete the designation process.