Want to take an exotic trip and engage in some do-gooding, too? Check out Roadmonkey Adventure Philanthropy's next adventure tour, which combines climbing Kilimanjaro with building a fishpond at a local Tanzanian school (June 12 26, $4,395; roadmonkey.net). And if you can't make that journey, don't despair. Check out voluntourism.org, which features podcasts, newsletters, and field reports about adventure-philanthropy trips like these.
Snorkel with Scientists in the Bahamas
On this eight-day trip, you'll help scientists study how climate change is affecting San Salvador's reefs. During your free time, you can scuba-dive or explore the mostly uninhabited island's sand dunes, sea cliffs, and caves. OUTFITTER: Earthwatch Institute (earthwatch.org). COST: from $2,250
Community Service and Wildlife in Africa
After four days of assisting teachers and organizing local sporting events on the spice-producing island of Zanzibar, it's back to the Tanzanian mainland for ten days to see the Big Five in Lake Manyara and Serengeti national parks. OUTFITTER: Gap Adventures (gapadventures.com). COST: $2,300
Surf and Teach in Peru
You'll stay with a local family for two weeks, alternating between activities like teaching, swimming, or English and riding the world-class waves around the northern town of Lobitos. OUTFITTER: Waves for Development (wavesfordevelopment.org). COST: $900 for two weeks, $250 each additional week