Banyan Tree Spa Bangkok
Day SpaBangkok
Hotel day spa in Sathon with four signature treatments, couples rooms, and daily walk-in access from 10am to 8pm.
$$$
Spas with walk-ins welcome in Bangkok
3 spas
Bangkok
Walk-in ice bath and sauna studio in Phra Khanong with a beginner class, private suites, and day passes from 490 THB, open daily 9am-9pm.
$$Bangkok Onsen
OnsenBangkok
A late-opening onsen-style bathhouse on Sukhumvit in Bangkok's Khlong Toei district, open to walk-ins daily for adults only.
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