The Bolte Bridge provides a mammoth bridge room, it would have to be the largest in Australia. The bridge room extends for 2.5km+ and provides various features along the way. It has ample height for even the biggest urban explorer, unlike a lot of other bridge rooms around Melbourne. The bridge room changes to some very large chambers as the bridge passes over the Yarra River and Victoria docks before returning to its regular trapezoid shape. This and the Bolte Towers are a must for any local or visiting Urban Explorer.