The city has recently introduced a new CityCirkel bus, specially geared towards tourists. It runs a circle around the inner city stopping at many of the main attractions. The small eco-friendly electric buses runs every seven minutes (M-F 9AM-8PM, Sa 10AM-4PM, Su 11AM-3PM) and can be hailed whenever one passes by if there are green dots on the curb. On streets with heavy traffic they also use regular bus stops. You use the same tickets as all other public buses and trains.
The electric driven CityCirkel buses take you to some of Copenhagen's top attractions such as City Hall Square, Ny Carlsberg Glyptotek Museum, the Tivoli, The National Museum, Christianborg Palace, Nyhavn and The Round Tower. The buses are shorter and narrower than ordinary buses, therefore, they can run in the narrow streets of the medieval city where the ordinary buses cannot. However, the CityCirkel buses still connect with other means of public transport at City Hall Square, Kongens Nytory, Copenhagen central train station, Nørreport and Vesterport stations as well as with the water buses.
The buses stop at the normal bus stops, wherever it is possible. But the CityCirkel buses also have their own bus stops, and in some places they can be hailed with a wave. A ticket costs 23 Kr. With time, the plan is to make the buses completely free of charge, but for now tickets can be purchased on board the bus. Remember to have coins ready. The CityCirkel runs on a circular trip which takes about an hour if you stay on board. Some visitors do the whole trip then decide where to alight on the second time around.
The small buses can hold 20 passengers, and have been specially designed to cruise the city centre streets of Copenhagen that are not serviced by the regular bus service. There are currently 11 of the yellow buses that run on electric batteries and produce virtually no noise. They are charged each night.
One further option is the CitySightseeing bus that runs three hop-on hop-off tours around the city in open-top double-decker buses. The main line leaves every 30 minutes, while the two other lines depart every hour in high season (Jun-Aug). Outside the peak season, services are halved. The price is 150 Kr for a one day ticket or 220 Kr for a two day ticket which also includes the DFDS canal tour boats.