Try a Council run operation. In East Lothian all of the swimming pools also have a Health Suite - gym, sauna and steam room and in some a jacuzzi. They offer monthly subscriptions that vary depending on which facilities you want to sign up for and what time of the day you wish to use them. Going for anytime access for all facilities is about £35. per month. At the other end of the scale, someone over 60 can use all the facilities between 10:00 and 16:00 Monday to Friday and Saturday/Sunday 12:00 till 16:00 for £14. per month.