For sightseeing purposes, most visitors enjoy exploring Ottawa's compact downtown area on foot or by bicycle. However, the OC Transpo company provides a top-class integrated public transport system. Travellers can purchase tickets when boarding buses and streetcars. Day passes and discount tokens are available. Taxis are freely available, but fairly expensive. Rates should be displayed in the taxi cab and the meter rate should be set at one at the start of a journey.