The Northern Islands (Faroese: Norðoyar or Norðoyggjar) are part of the Faroe Islands.
The road to the Norther Islands goes through the long Northern Islands tunnel (Norðoyatunnilin) from Eysturoy to Klaksvík on Borðoy. For cars, there is a toll for the tunnel (100 kr for a return trip).
Buses connect the islands with Tórshavn.
The road from Torshavn to Viðareiði makes for the longest journey possible on the Faroe Islands without using a ferry. It involves several tunnels, including The Northern Isles Tunnel and two long single carriageways with overtaking lanes.
Svínoy and Fugloy can be reached by a regular helicopter service from Klaksvík or by ferry from Hvannasund on the island Viðoy. Hvannasund can be reached by car or bus from Klaksvík via two mountain tunnels.
Buses connect Klaksvik with Viðareiði.
In order to get to Kalsoy you need to take the car ferry M/F Sam from Klaksvík to Syðradalur. No advance reservation. During summer it is advisable to queue in the lane at least 1 hr prior to departure as the morning routes are very popular and the ferry can only accommodate around 12 cars. If you don't make it onto the ferry by car, you may leave it in Klaksvík and enter the boat as passenger, since there is a public bus connected to all ferry arrivals and departures on Kalsoy.
The small islands of Fugloy and Svínoy are connected to Hvannasund on Viðoy by a passenger ferry. The round trip (40 kr) lasts about 2 hours and is quite popular as it offers splendid views of the islands and their cliffs. You should make an advance reservation by calling +298 343000 (not possible on the day of travel).
Strandfaraskip Landsins, the Faroese public transport service, publishes an annual timetable (Ferðaætlan) containing details of all ferry and bus schedules.
Several places in Klaksvík.
Unusually for the Faroes' villages, there are actually two places to eat or drink (coffee is very reasonably priced at both, alcohol at neither!)
Cottages. Hotel Klaksvík (see Klaksvík#Sleep).