HARNN Heritage Spa Riverside

Tucked into the third floor of The Salil Hotel Riverside, this spa brings together classical Thai healing traditions and a calm, unhurried atmosphere on the banks of the Chao Phraya River. The Charoen Krung setting places it a little removed from Bangkok's busier tourist corridors, giving the experience a genuinely secluded feel despite being accessible by river taxi or road. Visitors can choose from a range of treatments including oil massage, the signature Lohha treatment, Eurasian massage, express facials, foot massage, and head massage. Staff are consistently noted for their professionalism and attentive welcome, and the therapists are named individually in many visitor accounts — a sign of the personalised service on offer. The spa draws both hotel guests and outside visitors, with the third-floor location sitting conveniently above the hotel lobby. Good to know: The spa is open every day from 10:00 AM to 9:00 PM, which makes it a practical option at multiple points in a Bangkok itinerary — whether as an afternoon break or an evening wind-down after sightseeing. Hotel guests arriving early before their room is ready have found the spa a useful way to refresh after a long journey. Booking ahead through the hotel website is advisable, particularly for peak travel periods or if you have a specific treatment or therapist in mind.