REVA is a semi-outdoor contrast therapy club inside TRIFECTA's surf arena beside Somerset MRT on Orchard Road. It has a Finnish sauna it bills as Singapore's first outdoor sauna, an outdoor 41°C hot pool and twin cold pools at 5–7°C and 10–12°C. Entry is drop-in with no booking, all-day passes start at S$36, swimwear and towels are provided, and it opens daily 7am to 10pm with capacity capped at 50. Children under 16 have no sauna access.