China's Hong Kong-Zhuhai-Macao Bridge (HZMB), the world longest cross-sea bridge, opens for group tourists on a trial basis starting Friday.

A tour route commencing at the Zhuhai port to Blue Dolphin Island – one of HZMB's four artificial islands, which lasts roughly 140 minutes, will be open for group tourists.

Tourists from the Chinese mainland with valid ID cards and the Hong Kong and Macao Special Administrative Regions who have entered the mainland with valid travel permits are eligible to join the tour during the trial operation.