Oslo International is the usual gateway for most visitors entering the country, though many visitors from Sweden enter by train, bus, or car. There are also car and passenger ferries from Denmark, Germany, and Belgium.
Norway is a big country and—outside the cities—best explored by vehicle. Buses are plentiful, clean, and well-regulated, though travelers looking to explore outside major towns may wish to rent their own cars. Many chose to visit the country's famously beautiful fjord-laced coast by boat, and even if you chose to drive, you'll find car ferries an integral part of your journey. Norwegians heading for more remote communities often do so either by plane or boat. Train travel is also an option, with Norway's passenger train service running as far north as the town of Bodø.