I have started using the gym Kondis in Lassila and they do have another option other than what ssram has stated.
If you are using the gym between 0600 and 1500 hrs, that is during the day you pay 10 euros less on your monthly payment...isnt that cool?And with the key card you can swipe in as many times as you want.
I have seen couple opt for the 06 to 2200 hrs scheme which is 10 euros extra...but use the same card to swipe in..ofcourse each one uses the gym at different times of the day, which means 41 euros plus 19 50 euros for 2 per month.