This Luxury Wellness Retreat in Sedona, Arizona, Is the Best Destination Spa in the U.S.—With a Crystal Grotto, Canyon Views, and an Outdoor Pool

This Luxury Wellness Retreat in Sedona, Arizona, Is the Best Destination Spa in the U.S.—With a Crystal Grotto, Canyon Views, and an Outdoor Pool

Sedona, Arizona's Mii amo wellness retreat recently underwent a $40 million renovation—and it's the No. 1 destination spa in the U.S., according to Travel + Leisure's 2025 World's Best Awards.Ken Hayden/Mii amo Scenic views from the main pool at Mii amo in Sedona, Arizona.Book NowFrom the outside, the curved blue shape of Mii amo's domed crystal grotto stood out against Boynton Canyon's red rocks. Inside, I removed my shoes and felt the red, san…