Let's Relax Onsen and Spa

What is it? Sitting on the fifth floor of the Grande Centre Point Hotel in Thonglor, Let's Relax Onsen and Spa brings a slice of Japan to Bangkok. The setup features five hot spring baths filled with Gero onsen powder imported from Takayama, alongside steam rooms and saunas for a complete rejuvenation experience.

Why we love it: This spot works brilliantly as a bridge between Japanese tradition and Thai hospitality, giving you an authentic onsen experience without needing to leave the city. The mineral-rich baths do most of the heavy lifting when it comes to relaxation and the Gero onsen powder from one of Japan's most famous hot spring regions adds a sprinkling of legitimacy. It's not just about soaking either. The combination of steam rooms and saunas means you can build out a proper thermal routine rather than just hopping in and out of a bath.

Time Out Tip: Like traditional Japanese onsens, these are gender-separated and strictly no swimwear allowed. 

5/F, Grande Centre Point Hotel. Open daily, 10am-midnight