Let’s Relax Onsen and Spa: Thonglor was selected as the Best Onsen in Thailand 2023 based on criteria such as the design of the onsen, appropriate temperature, various amenities in the onsen, cleanliness of the facility, other conveniences provided, accommodations surrounding the area, decoration, different environments, choice of materials reflecting the intention of service, value for money, convenience in payment methods, and the staff’s attention to service.