Courtesy of Global Volunteers

Cook Islands

14 of 21

Get to know this lush South Pacific archipelago while lending a hand to the Maori people. Volunteers give children reading lessons; clear trails in the bird sanctuary; or assist scientists at the local Whale Research Center. Rarotonga island's crystal-blue waters are ideal for snorkeling, and its jungle-covered volcano is a good hiking spot, as long as you have a seasoned guide.

Trip Tip: Don't miss the Saturday morning Punanganui market, where stands overflow with tropical fruits.

Luxury Level: The KiiKii Motel has simple yet clean rooms, with kitchenettes and a pool outside.

Global Volunteers; 800/487-1074; globalvolunteers.org; two-week trips from $2,295 per person, all- inclusive; departures year-round.

40 Trips To Change Your World

40 Trips To Change Your World

Cook Islands

Get to know this lush South Pacific archipelago while lending a hand to the Maori people. Volunteers give children reading lessons; clear trails in the bird sanctuary; or assist scientists at the local Whale Research Center. Rarotonga island's crystal-blue waters are ideal for snorkeling, and its jungle-covered volcano is a good hiking spot, as long as you have a seasoned guide.

Trip Tip: Don't miss the Saturday morning Punanganui market, where stands overflow with tropical fruits.

Luxury Level: The KiiKii Motel has simple yet clean rooms, with kitchenettes and a pool outside.

Global Volunteers; 800/487-1074; globalvolunteers.org; two-week trips from $2,295 per person, all- inclusive; departures year-round.

40 Trips To Change Your World

Courtesy of Global Volunteers

40 Trips To Change Your World

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