Juneau is accessible only by air and sea. Automobiles are either shipped to Juneau or brought on the Alaska Marine Highway from connections to the highway system in Bellingham, Prince Rupert, Skagway, Haines, and Whittier. Scheduled jet flights and air taxis are available at the municipally-owned Juneau International Airport. The airport has a paved runway and a seaplane landing area. Marine facilities include a seaplane landing area at Juneau Harbor, four cruise ship docks, five small boat harbors, and a state ferry terminal. The Alaska Marine Highway System and cargo barges provide year-round services. Capital Transit provides public transportation throughout the urban area. In 2013, local ridership totaled 1.25 million trips. Juneau is a busy port for cruise ships and can have more than 10,000 visitors in a single day. The city is currently expanding its docking facilities to accommodate larger ships. Approximately 1 million cruise ship passengers visit Juneau each year. There is an extensive network of hiking trails in the Juneau area. Private boats and kayaks are commonly used to reach areas off of the road system. Juneau was certified as a Bicycle Friendly Community in 2011.