Bangkok
Walk-in ice bath and sauna studio in Phra Khanong with a beginner class, private suites, and day passes from 490 THB, open daily 9am-9pm.
$$
Spas with groups in Thailand
3 spas
Pai, Mae Hong Son
A walk-in herbal sauna and cold-plunge spot in Pai with a restaurant and lounge attached, open daily 8am-10pm.
Gigi Spa Pai
Day SpaPai, Mae Hong Son
Affordable day spa near Pai's Wednesday Market open daily except Monday from 3pm to 9pm, with walk-in access and a sauna.
$