The park has a long series of hanging bridges known as the Kakum Canopy Walkway at the forest canopy level to provide access to the forest, which is a unique feature in the entire African continent. At 40 m (130 ft) height, the visitor can approach the limits and view plants and animals from a vantage point that would otherwise be inaccessible to people. The canopy walkway passes over 7 bridges and runs over a length of 330 m (1,080 ft). Some of the tree canopies are more than 50 metres (160 ft) in height. Built with wire rope, aluminium ladders, wooden planks, it is secured by a series of netting for safety purposes. An additional viewing platform that will allow visitors to climb into the canopy without braving the canopy walkway is currently under construction.[2] The Canopy Walkway was built by two Canadian engineers from Vancouver with the assistance of five (5) Ghanaians - the latter (staff of Ghana Heritage Conservation Trust- managers of the Kakum National Park Visitor Centre)have been maintaining the facility ever since.