The Hawai'i spas on the Mobil Travel Guide's list:

Mobil Four-Star Award Winners

SpaHalekulani, Halekulani

Spa Suites at The Kahala Hotel and Resort

Hualalai Sports Club and Spa, Four Seasons Resort Hualalai

The Spa at Manele Bay, Four Seasons Resort Lanai

Spa Grande at The Grand Wailea Resort

The Spa at Four Seasons Resort Maui at Wailea

Mobil Three-Star Award Winners

Spa Moana, Hyatt Regency Maui

Spa Kea Lani at The Fairmont Kea Lani Maui

Mobil Travel Guide's evaluation system rates the spas using more than 450 criteria, such as the reservation process and check-in to the public areas, locker rooms and fitness facilities. Inspectors examine factors such as courtesy of staff, overall efficiency, guest comfort and convenience, luxury, therapists' technical skill and knowledge, and facility condition.