Members of the public are checking out Kapiti Coast's new $630 million expressway on Saturday before it opens to traffic in the next two weeks.
The long-awaited stretch of four-lane highway north of Wellington is open to the public from 10am until 3pm.
People can walk or bus five kilometres of the 18km expressway between Te Roto Drive in Paraparaumu or Te Moana Road in Waikanae.
The "ExpressDay" route is open to pedestrians and mobility scooters and wheelchairs on one side and tour buses on the other side.
The entrances are either Te Roto Drive in Paraparaumu or Te Moana Road in Waikanae.
The expressway links McKays Crossing to Peka Peka, bypassing several small towns that have slowed down traffic on State Highway 1.
Transport Minister Simon Bridges opened the expressway on Thursday, saying it will significantly improve safety and cut down travel time. It opens to traffic in the next two weeks.
It has 18 bridges, construction put more than $200m into the local economy, more than 5000 people worked on it and 3.5m cu m of earth was shifted.