Climb aboard a motorboat and sail a tropical “inner sea” in search of endangered dolphins and whales in Costa Rica.
Earthwatch expeditions pair researchers with volunteers to address some of the world’s most pressing environmental challenges. Explore our current expeditions to discover how you can make a difference.
Showing 2 of 2 matchesHow can we keep shark and ray populations strong? Find answers while exploring some of the world’s most beautiful reefs.

CUSTOM EXPEDITIONS FOR GROUPS
Explore the world together. Our expert staff can coordinate a meaningful experience for school groups, corporate employees, alumni associations, community groups, or other affiliations.
Be more than a tourist
Killer Whales and Their Prey in Iceland was one of the best expeditions of the 11 that I have volunteered for to date. Here's what I enjoyed the most:
Our Research Focus

Terrestrial Ecosystems
Preserve and restore forests, assess and mitigate the impacts of a changing climate, and conserve biodiversity.

Ocean Ecosystems
Take action to protect marine habitats, conserve biodiversity, and promote sustainable livelihoods.

Sustainable Cities and Communities
Collect essential environmental data to promote urban resiliency while helping to influence positive change.