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.