W Bana (Google)
I have been visiting Banya No.1 regularly for several years and nothing beats it for a space to relax, either alone or with friends, any time of year. The combination of rejuvenating Parenie with delicate treatments and delicious food is unlike anywhere else. The massages are great also. I have visited alone, taken friends and family and even professional connections. A hidden oasis in the heart of London!