The Aquabus, also referred to as river tram or water taxi, is a public river transport system ferrying passengers along a fixed route to a set timetable. Despite the enormous distance covered by St. Petersburg's rivers and canals, there are currently only one inner-city line in operation. Reaching speeds of up to 80 km/h, the Aquabus really does provide a fast way of getting from A to B, although locals are yet to take it seriously as a transport option, and most passengers - travelling from one end of the line to the other and then back again - are tourists. Navigation begins at the very end of May and finishes in October.