Cheap day spa SE

[puttergal]

Thought this might be the best board to ask in!
I'm hoping to do a day spa if / when restrictions open up - a treat for my mum.

Anyone got any suggestions?
Pref 90mims from London by car max and not too posh/expensive?
Just want a bit of RnR to get through the winter!

Whittlesbury Hall always used to be very good value - and nice, if a big busy. Near Milton Keynes - I have no idea if it’s still there though!

Lifehouse Spa in Thorpe le Soken, Essex. Should be within your distance depending where in London you are.