MarineBio is a nonprofit organization staffed by volunteer marine biologists, students, professors, and conservation advocates working to share the wonders of the ocean realm inspiring marine science education, research, and a sea ethic.

Nature Canada’s goal is to establish Canada as a Nature Nation, where threatened species and ecosystems are protected, common species and ecosystems are conserved, ecological integrity is maintained, and the natural world is embraced by Canadians every day.

Summer adventure program for teenagers in the Caribbean, Virgin Islands. Activities include scuba diving, sailing, rainforest ecology, backpacking, marine biology, sea kayaking, whitewater rafting, water-skiing, safari, community service, snorkeling, underwater photography

Earthwatch Institute is an international non-profit organization that brings science to life for people concerned about the Earth's future. We offer volunteers the opportunity to join scientific field research projects all over the world, and help answer critical questions about climate change, biodiversity and sustainability. More than just an ecotour or vacation, Earthwatch volunteers see places and meet people that tourists can't.

SEA offers college level semester at sea, high school, and teacher programs focusing on oceanography, maritime studies, marine biology, sailing tall ships, and the environmental study of oceans.