From memory and we’re talking 35-40 years ago.. it was just one super huge hall , quite possibly the biggest indoor space I’ve ever seen, some of the roof had fallen in and was strewn all over the floor. It had some really sketchy metal gang ways up high but you couldn’t get to them as someone had cut all the lower steps out. I’m sure it was open at the south side , covered in graffiti and bottles. It was too dirty to skate on so we made the south bank our home that summer.