SkiStar Sports & Adventures is at Hammarbybacken, a ski slope in Stockholm, but its listed activities are for summer. Visitors can ride a zipline, choose among several mountain-tube tracks, take a mountain coaster or try summer skiing on special grass. The activities offer different ways to use the slope: riding down a track or coaster, travelling on a zipline, or skiing on grass. Visit Stockholm says the summer activity park opened in 2022. Its purpose is to make a day on the slope possible without waiting for winter or snow. The listing gives four activity types, with multiple tube tracks. Summer skiing is done on special grass rather than snow. This is a different use of a ski slope from winter skiing, with rides and summer skiing presented as options at the same activity park. The information describes a summer park, so it is a seasonal alternative to snow-based activities.