Not far from Hermannstraße is the Eisstadio Neukölln. It's called a Stadion (stadium) but has no roof, so the winter atmosphere is preserved. There are happy hours at different times where you only have to pay half-price. Neukölln isn't the only place you can go ice skating - there are nice ice rinks at Erika-Hess-Stadion in Wedding or in Lankwitz outside of the Ringbahn, for example.