淳安界首体育中心（山地自行车赛场）

The mountain-bike course at Chunan Jieshou Sports Centre climbs the hillside of Yanjia village in Jieshou township, Chunan county, next to the velodrome and the BMX track, and was built as a temporary venue for the Hangzhou Asian Games. The loop runs about 4.9 km with roughly 47 m of elevation difference relative to the lake surface, and the designers used that relief to string together steep climbs, consecutive slopes, rock gardens, log obstacles and tight turns, covering essentially every technical element of cross-country racing. Sections of the track look straight out over Qiandao Lake, which is why riders call it the lake-and-mountain course and describe the racing as taking place inside a landscape painting. On 25 September 2023 it hosted the men's and women's cross-country events, two gold medals, with Chinese riders taking first and second in the women's race. The course had already opened to the public in stages from 1 July 2022, and in July 2023 it staged the national mountain-bike championships together with the national youth championships, drawing 14 teams and more than 100 athletes. After the Games the track remains open to riders as the technical off-road section of the lake's cycling network and hosts winter training for provincial and national squads; Jieshou is about half an hour by road from Qiandao Lake town, connected to the county seat and the high-speed rail station by the lakeside ring road. The loop starts and finishes beside the velodrome, so team areas, mechanics' zones and warm-up space share the velodrome's facilities, and championship races are run over several laps of the circuit.