Agua Spa at the Mondrian London Hotel, morganshotelgroup.com. Courtesy of the Morgan Hotel Group.
Agua Spa at the Mondrian London Hotel, morganshotelgroup.com. Courtesy of the Morgan Hotel Group.

This new subterranean spa offers a pore-clearing detox treatment by Barcelona’s Natura Bissé, a marine-based hydrating facial by Stockholm’s Estelle & Thild, and a Stiletto Booster foot treatment using local brands Soveral skincare and Ciaté nail lacquer.