Around-the-clock shock

The second edition of the BMW Hood to Coast China Relay returns on Saturday.

More than 1,200 runners will challenge the 180-kilometer marathon course, which starts at Genting Resort, a skiing venue near 2022 Winter Olympics co-host city Zhangjiakou in Hebei province.

Running day and night, teams of five will traverse stunning mountain terrain en route to the picturesque Xiaoertai reservoir in Zhangbei county.