Hidden beneath Knightsbridge’s Maybourne hotel, Surrenne is no ordinary spa. This is a whole new wellness universe—part sanctuary, part sci-fi dream. Brought to life by wellness queen Inge Theron (yes, the founder of FaceGym), Surrenne fuses next-gen longevity science with old-school indulgence. Think whisper-quiet treatment suites, mood-reactive lighting, jasmine-infused steam, and candlelit pools with underwater soundtracks.

Spread across four dreamy, underground floors, you’ll find a full fitness suite, an infrared sauna, a hammam with attitude, and London’s first (and only) Tracy Anderson Method studio. Oh, and a café curated by the ever-glowing Rose Ferguson, serving adaptogen-laced bites and biohacker brews to keep your inner goddess fed and focused.

This is where diagnostics meet decadence. With on-site GPs, microbiome mapping, epigenetic testing, and an advisory board that includes Dr Andrew Huberman, Dr David Sinclair, and Dr Lisa Shapiro, you’re basically upgrading every cell in your body while reclining in marble luxury. Longevity, but make it bougie.

Membership is ultra-selective (think ~100 people, five-figure fees), but hotel guests can sneak in for a session and soak up the glow.