A&O Hostel Hamburg Reeperbahn is very well suited to youth groups. The hostel is located close to U-bahn as well as S-bahn.
The reception is open 24H and luggage can be stored. There is a bar and a games area where billard can be played. Breakfast is served as a buffet in the breakfast room. Free Wifi in the common areas.
You'll be accommodated in nice multibed room with own bath, toilet and TV.