If you and a couple friends can't agree on what to do this weekend, GSB GÜMÜŞHANE MERKEZ GENÇLİK MERKEZİ over in Merkez is one option worth putting on the table. Some activity spots run on a reservation system, others just take walk-ins — worth a quick check before you show up expecting one and find the other. Sort that part out first and the rest of the plan falls into place.