Here are some alternatives from Paul Milican.

I note that the non-member price for York Hall peak/non-peak is now
£11.10. An extra 10p for Porchester Hall sounds excellent value by
comparison to the grime and decay of our beloved baths!

Keep Steaming !

Mark

These might keep you ticking over till April 2006:

Porchester Baths
020 7792 2919
Queensway
Bayswater
London W2 5HS
'Luxury Spa' at luxury prices. But York Hallers can get in for
£11.20 while York Hall is closed. Go down with a passport photo,
fill in the enquiry form and they will send you an authorisation
card that will get you in at reduced price (you also get in at
reduced price on this first visit). No need to be a member of York
Hall - just say you were a York Hall user. Pensioners with proof of
pension can get in for £6.50. Stay as long as you want, great
swimming pool, wonderful Victorian baths.

Canning town
Stephenson Street, E16
Escape the high-crime neighbourhood and enjoy the steam (if you're
lucky enough to find the place). When you get to Canning Town, you
need to turn left out of the station and walk up Manor Road, at the
left side of the roundabout under Canning Town flyover. There is a
green 'bridge' that you need to go over to get to that side. You can
actually see the sign for the baths from Manor Road itself.
Most days seem to be men's days - including Saturday and Sunday.

Ironmonger Row
Ironmonger Row
London EC1
020 7253 4011
Mens days: Tues + Thurs 9am-9.30pm and
Saturday 9am-5.30
£11.50 - quite a large amount for quite a small Turkish bath


Atherton Leisure Centre
189 Romford Road
London E15 4JF
Telephone: 020 8536 5500
Leisure with attitude - leave the knitting at home.
Mens days: Tues and Wed all day. Fri 2pm-9pm Sat and Sun 9am-12pm.
Unlikely to be a favourite.

If all else fails, get a ticket to Paris and go to the fabulous
hamman at the Paris Mosque. 
La Mosquée de Paris 39 rue St-Hilaire, 5e, M° Censier-Daubenton,
tel: 01 43 31 38 20, open daily (men Thurs and Sunday). Just across
the road from the Jardin des Plantes.