STELLAR premium fitness club is a members' gym in the Hilton hotel on Grzybowska whose spa and wellness zone gives club members saunas, a swimming pool and a jacuzzi. The club also runs sauna shows and occasional Sauna Party evenings with three sessions led by a sauna master, which non-members can join for a fee: the August 2026 edition cost 80 zł for members and 120 zł for guests, booked at reception or by phone.
