The Hong Kong-Zhuhai-Macao Bridge is set to open on Tuesday. The mega sea-crossing is 55 kilometers long, and is made up of several sections connecting the three cities. CGTN reporter Mao Dan got a chance to tour one part of the bridge before the giant structure's grand unveiling.

MAO DAN HONG KONG "For a space-starved city like HK, it's difficult to find a place to set up border crossing and make up a plan to connect the city to the Bridge in the best way. So we can see from the map, HK did reclamation to make place for the border crossing facilities and there is a 12km HK Link Road to connect the city to the Mainland. We are getting on a media tour and will check out the border crossing facilities in the building right behind me."

This is one of the buses that will run along the bridge, shuttling passengers across the borders of Hong Kong, Zhuhai and Macao. Taking a ride on the bus, the first stop is the passenger clearance building.

MAO DAN HONG KONG "We just passed the passenger clearance building and now we are going through the underground tunnel right underneath the HK International Airport."

A special treat while journeying along the Hong Kong Link Bridge is the mountainous scenery on one side, and the airport on the other. From here, aviation enthusiasts, can watch planes take off and land at one of busiest airports in the world.

MAO DAN HONG KONG "We stopped over in the middle of the 12 kilometer Link Road of the HKZM Bridge, and you can see it's a dual 3-lane highway on this viaduct."

Altogether, the trip took less than ten minutes to get from the border checkpoint to the end of the Road.

MAO DAN HONG KONG "To my left hand is the wire netting boundary line between Hong Kong and the Chinese mainland. The media people taking part in this tour are all very excited to get here."

It's probably the last time ever that anyone will be able to walk along the bridge, as soon it will only allow registered vehicles to make the crossing. Yet regardless of how one is traveling, the views along the way will stay, and are there for everyone to enjoy. Mao Dan, CGTN, Hong Kong.