Under Japanese administration in the 1920s and 1930s bauxite mining was established in the Ngardmau area. The mines were served by a narrow gauge railway. The line of the railway can be followed today, much of the track remains in situ along with a number of other remains such as buildings and one of the original locomotives.
A inclined passenger carrying monorail opened in 2011, roughly parallel with the old track and providing an alternative route for visitors to the Ngardmau waterfalls.
Flag image from CIA World Factbook