Tamarind Springs
Day SpaKoh Samui, Surat Thani
A forest day spa on Koh Samui built around granite steam caves, waterfalls and plunge pools, open daily with walk-in or day-pass access.
$
Spas with walk-ins welcome in Thailand
2 spas match
Momiji Onsen & Spa
Day SpaKrabi
A moderately priced onsen-style day spa in Ao Nang, Krabi, open daily from late morning into the night.
$$