The Spa at Séc-he is more than another wellness center in Palm Springs, California. The spa is the cultural centerpiece of the strikingly modern Agua Caliente Cultural Plaza.   Located on land owned by the Agua Caliente Band of Cahuilla Indians, the six-acre complex includes the five-star spa and the new cultural museum that immerses you in the tribe’s history in this desert oasis. The plaza is one of only a few places in the U.S. where you can soak in a hot mineral water...