4 Hotels With an Edge On "Voluntourism"

Hale Ho'okipa Inn, Maui, Hawaii

What you'll find: Owner Cherie Attix has restored a once-crumbling Craftsman-style bungalow (it dates from 1924) into a charming four-room B&B filled with local art and '20s-era antiques. The famed Ho'okipa windsurfing beach is only a 15-minute drive away.

How you can volunteer: Hale Ho'okipa partners with the Leeward Haleakala Watershed Restoration Partnership to replenish the vanishing dryland forests on the slopes of Haleakala mountain. You can get a rugged workout with the group as you hike the mountain, replanting native species.

What you'll spend: $125 to $185 per night ( Maui-Bed-and-Breakfast.com )