Spa & Wellness

The Subterranean Sanctuary

Three floors beneath Mayfair, Altaris London's spa occupies stone-lined corridors that predate the hotel itself. The temperature is constant; the silence is structural. Treatments draw on British botanical traditions — Cornish sea kelp, Scottish heather extract, Lake District mineral water — combined with the clinical precision of evidence-based physiological recovery. This is not a spa that flatters. It restores.

Spa Facilities & Treatment Rooms

  • 18-metre heated indoor swimming pool
  • Cold plunge pools (4°C and 10°C)
  • Altitude training chamber
  • 3 Finnish saunas
  • 2 steam rooms
  • Sensory shower walk
  • 6 individual treatment rooms
  • 2 VIP couples' treatment rooms
  • 2 physiotherapy studios
  • Reflexology pathways

Reservations

Altaris is a portfolio demonstration. In a live build, this connects directly to your preferred reservations platform — whether an in-house system, a third-party engine, or a bespoke integration.