4 Hotels With an Edge On "Voluntourism"

ROCKRESORTS: WYOMING, NEW MEXICO, ST. LUCIA, & SIX LOCATIONS IN COLORADO

What you'll find: RockResorts is devoted to down-to-earth comforts (think wooden four-poster beds and rustic detail) and to continuing the conservationist legacy of founder Laurance Rockefeller.

How you can volunteer: During the warmer months at U.S. locations, team up with U.S. Forest Service staffers and other agencies to clear local trails. A trailblazing session will save you up to 30 percent off one night's stay. In St. Lucia, help local farmers build fences and maintain gardens.

What you'll spend: Summer rates start at $139 ( RockResorts.com )

Find the volunteer vacation that's right for you