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Uncovering the mysteries of Cororado's ancient basketmakers

Uncovering the Mysteries of Colorado's Ancient Basketmakers

Dig into the archaeology of Colorado’s Basketmaker communities.
Rendezvous:Durango, Colorado, USA $2125 - $3025 7-14 days Easy

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Whales and Dolphins Under the California Sun

Search for, spot, photograph, and identify whales and dolphins in the waters off Southern California.
Rendezvous:Dana Point, California, USA $2575 - $3700 7-14 days Easy

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Hunting for Caterpillars in La Selva (Costa Rica)

Climate Change and Caterpillars in Costa Rica

Discover how important caterpillars are to biodiversity Rendezvous:San Jose, Costa Rica $2575 11 days Moderate

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Climate Change at the Arctic's Edge

Study climate change where polar bears roam - on the very edge of the Arctic tundra Rendezvous:Churchill, Manitoba, Canada $3625 11 days Moderate

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Climate Change at the Arctic's Edge - Teen

Exactly how is climate change affecting the Arctic?
Rendezvous:Churchill, Manitoba, Canada $3725 11 days Moderate

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Climate Change in the Mackenzie Mountains

The tundra - where eagles soar and caribou roam
Rendezvous:Whitehorse, Yukon Territory, Canada $5625 11 days Moderate

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Costa Rican Coffee From Community to Cup

What's the impact of our consumer choices? Rendezvous:San Jose $1875 8 days Moderate

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Costa Rican Coffee From Community to Cup - Teen

What's the impact of our consumer choices? Rendezvous:San Jose, Costa Rica $2200 8 days Moderate

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Costa Rican Sea Turtles

Help save leatherback sea turtles from extinction at one of the most important remaining nesting beaches. Rendezvous:Guanacaste, Costa Rica $2875 9 days Very Active

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Research in the Valles Caldera of New Mexico

Encountering the Prehistoric People of New Mexico

Rendezvous:Albuquerque, New Mexico, USA $2975 11 days Very Active

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Exploring Boston's Urban Forest - Short Duration

Help to discover the value of urban forests
Rendezvous:Cambridge, Massachusetts, USA $80 1 days Easy

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Exploring San Francisco's Urban Forest - Short Duration

Help to discover the value of urban forests
Rendezvous:San Francisco, California, USA $80 1 days Easy

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Loons and the Gulf of Mexico Oil Spill

Do something about the worst oil spill in US history. Help research Common loons in the Gulf of Mexico. Rendezvous:New Orleans, Louisiana, USA Coming Soon 7-14 days Easy

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Monitor mammal populations to determine impacts of climate change and other environmental challenges Rendezvous:Halifax, Nova Scotia, Canada or Cherry Hill Accomodations $1975 - $2875 7-14 days Moderate

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Mammals of Nova Scotia - Teen

Monitor mammal populations to determine impacts of climate change and other environmental challenges Rendezvous:Halifax, Nova Scotia, Canada $3075 7-14 days Moderate

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Mammoth Graveyard in South Dakota

Help piece together life in the Ice Age at a truly amazing mammoth site. Rendezvous:Rapid City, South Dakota, USA $3175 15 days Very Easy

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Sustainable agriculture in California's wine country

Protecting the Rivers of California’s Wine Country

Visit vineyards and support sustainable agriculture
Rendezvous:Sonoma County, California $2075 7 days Easy

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Protecting the Rivers of the California Delta - Short Duration

Help restore waterways of the California Delta
Rendezvous:Davis, California $825 3 days Easy

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Puerto Rico's Rainforest

Trial a cutting edge way to regenerate forests that could provide local income and protect biodiversity Rendezvous:San Juan, PR, USA $2075 10 days Very Active

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Puerto Rico's Rainforest - Teen

Trial a cutting edge way to regenerate forests that could provide local income and protect biodiversity Rendezvous:San Juan, PR, USA $2575 10 days Very Active

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Safeguarding Whales and Dolphins in Costa Rica

Conduct critical research on whales and dolphins in Costa Rica Rendezvous:Puerto Jimenez, Osa Peninsula, Costa Rica $1675 - $1875 7-9 days Easy

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Safeguarding Whales and Dolphins in Costa Rica - Teen

Conduct critical research on whales and dolphins in Costa Rica Rendezvous:Puerto Jimenez, Osa Peninsula, Costa Rica $2175 9 days Easy

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Shark Conservation in Belize

Help establish protected areas for sharks along a Belize’s magnificent Mesoamerican Reef Rendezvous:Dangriga, Belize $2675 8 days Moderate

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Shark Conservation in Belize - Teen

Help establish protected areas for sharks along a Belize’s magnificent Mesoamerican Reef Rendezvous:Dangriga, Belize $2975 8 days Moderate

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Snorkeling to Protect Reefs in The Bahamas

Help our scientists create better marine reserves Rendezvous:Rock Sound airport, Eleuthera $2775 10 days Moderate

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Snorkeling to Protect Reefs in The Bahamas - Teen

Coral reefs are vital ecosystems. Help protect them Rendezvous:Rock Sound airport, Eleuthera $3075 10 days Moderate

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Spotting Songbirds in the Rockies

Monitor migratory and resident songbirds Rendezvous:Jackson Hole, Wyoming, USA $2075 9 days Moderate

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Trinidad's Leatherback Sea Turtles

Help save the world’s largest sea turtle from extinction Rendezvous:Port of Spain, Trinidad and Tobago $2825 12 days Very Active

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Trinidad's Leatherback Sea Turtles - Teen

Help save the world’s largest sea turtle from extinction Rendezvous:Port of Spain, Trinidad and Tobago $3575 12 days Very Active

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Uncovering the Mysteries of Colorado's Ancient Basketmakers - Teen

Dig into the archaeology of Colorado’s Basketmaker communities.
Rendezvous:Durango, Colorado, USA $2250 7 days Easy

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Volcanology and Ecology in Nicaragua

Explore life in the shadow of an active volcano in Nicaragua. Rendezvous:Managua, Nicaragua Coming Soon 7-14 days Moderate

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Whales and Dolphins Under the California Sun - Short Duration

Spend an incredible weekend researching grey whales Rendezvous:Palos Verdes, California, USA Coming Soon 3 days Easy

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Whales and Dolphins Under the California Sun - Teen

Search for whales and dolphins off the California coast
Rendezvous:Dana Point, California, USA $2875 7 days Easy

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Discovering fossils at Arlington Archosaur Site, Texas

When Archosaurs Attacked and Reptiles Ruled Texas

Unearth remarkable dinosaur fossils! Rendezvous:Dallas, Texas, USA $2375 7 days Moderate

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When Archosaurs Attacked and Reptiles Ruled Texas - Teen

Help unearth amazing dinosaur fossils! Rendezvous:Dallas, Texas, USA Coming Soon 7-14 days Moderate

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