Contribution starting at $3,100
Exported from Streamline App (https://app.streamlineicons.com)
9 days (avg. $344 a day) Includes accommodations, food, and all related research costs

As a paying volunteer, you directly fund scientific research by covering permits, equipment, and other costs while supporting local vendors.

This expedition will not host teams in 2025. Instead, see Sea of Giants: Marine Life of the Baja Peninsula to support Dr. Oviedo's marine mammal research in Mexico.

BOOK WITH A $500 DEPOSIT
Ocean Health

Marine Life Conservation in Costa Rica

Location
Golfo Dulce, Costa Rica
Activity Level
Easy
Food
Shared meals
Special diets accommodated
Staff-prepared meals
A humpback whale (Megaptera novaeangliae) in Costa Rica
Two teen girls tracking a dolphin and recording the data in Costa Rica.
A beautiful ocean view in Costa Rica
Two common bottlenose dolphins (Tursiops truncatus)
Two common bottlenose dolphins (Tursiops truncatus) being tracked by a boat of  participants in Costa Rica
An  volunteer photographs two common bottlenose dolphins (Tursiops truncatus) in Costa Rica
A beautiful ocean scene n Golfo Dulce, Costa Rica
A humpback whale (Megaptera novaeangliae) in Costa Rica
Two teen girls tracking a dolphin and recording the data in Costa Rica.
A beautiful ocean view in Costa Rica
Two common bottlenose dolphins (Tursiops truncatus)
Two common bottlenose dolphins (Tursiops truncatus) being tracked by a boat of  participants in Costa Rica
An  volunteer photographs two common bottlenose dolphins (Tursiops truncatus) in Costa Rica
A beautiful ocean scene n Golfo Dulce, Costa Rica

Join researchers in the pristine wilds of Costa Rica to conduct critical research on marine mammals. Your findings may help to develop a permanent marine protected area.


An  volunteer monitors a cetacean’s GPS location.Golfo Dulce, a narrow inlet on the southern Pacific coast of Costa Rica, provides a rich habitat for cetaceans (whales and dolphins). It remains fairly pristine since the many tourists who visit Costa Rica each year haven’t quite discovered it yet—which makes now a crucial time to investigate what the ecosystem needs to remain healthy. By understanding the behavior and tracking the abundance of the marine mammals in this region, we can ensure we have the necessary information to protect them best when tourism starts in earnest in this beautiful, wild place.

For about a decade, this project has gathered information on three species of cetacean in the gulf: the pantropical spotted dolphin, the bottlenose dolphin, and the humpback whale. In studying these cetacean species, researchers hope to understand how to preserve the entirety of this beautiful marine ecosystem.

Through this research and your volunteer involvement, this project will help develop conservation plans to protect the future marine biodiversity in the gulf.

 

 

A Typical Itinerary

  • DAY 1: Arrival, orientation, training
  • DAY 2: Training on dolphin and whale behavior sampling and dolphin photo-identification
  • DAYS 3–7: Dolphin and whale surveys, photo-ID work
  • DAY 8: Time off to explore or photo-ID work at camp
  • DAY 9: Departure

 

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HOW YOU WILL HELP

In this beautiful tropical setting, you will:

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An  volunteer documents a dolphin’s GPS location, size, and behavior.
MONITOR WHALES AND DOLPHINS

By boat, you will follow groups of dolphins and whales. When someone spots a cetacean, you'll document its GPS location, size, and behavior (e.g., feeding, traveling).

A group of  volunteers follow marine animals to observe and document them.
RECORD TROPHIC WEB

Document and describe the species in multi-predator assemblages by observing aggregations of schooling fish and their predators, such as dolphins, seabirds, sharks, and rays.

A Common bottlenose dolphin (Tursiops truncatus)
PHOTO-IDENTIFY INDIVIDUALS

Back on land, you’ll help sort pictures of each dolphin species so scientists can identify individuals using the unique scars, notches, and other markings on their dorsal fins. The researchers know the dolphins in the gulf exceptionally well, so expect to hear stories about some of their most memorable encounters.

Field conditions and research needs can change the itinerary and activities. We appreciate your cooperation and understanding.

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FEEDBACK & QUESTIONS

10 Reviews on this Expedition

If you have been on this expedition, others considering attending would love to hear about your experience.
William Lemp |
Golfo Duce in Costa Rica is a special place. The P.I., Lenin Oviedo, made it even more so. He spent time educating us not only on this project, but broader environmental implications. He was pleasant and enthusiastic. 
Amelia Black |
I had a wonderful time observing and collecting data on dolphins on the beautiful Gulfo Dulce. I so appreciated the PI (Lenin) on this project.  He gave wonderful, easy to understand lectures that gave us more in-depth understanding and the bigger picture.  He looked after us all and was always good-natured and also very knowledgeable and committed to his work. I found the heat and humidity challenging but others in my expedition didn’t. 
Ellen Yanker |
Was over and above what I expected. The crew had done much knowledge and experience on the research. Was able to participate in data and always a debrief after to learn more about what we saw and mammal behavior. The accommodation was safe and beautiful. The food was local fresh and amazing. The crew shared so much of their hospitality and knowledge. Will always cherish and hold dearly. The office was so helpful and answered all questions. Best days ever 

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