There are also other places that are not run by wards. At the moment it is quite difficult to get into a good tennis club. Membership fees are high and there is often a waiting list years long. There are a few places, though, that offer short-term membership or allow visitors to enter. Most of the clubs mentioned above have their own pools.
Small pool open all seasons.
An indoor ski and snowboard facility. You can rent ski wear and skis, snowboards as well.