Ärjänsaari Island is located in Kajaani, in the vast stretch of Ärjänselkä in Lake Oulujärvi. The distance, as the crow flies, from the centre of Kajaani to the island is roughly 16 kilometres. There are the following boat harbours in the nearby areas: Ruunaniemi (3 km), Koutaniemi (7.5 km), Paltaniemi (17.5 km) and Kajaani Kalkkisilta right next to town centre.

• To the Koutaniemi boat harbour: from road no. 5 (Kajaani–Iisalmi), turn onto Vuoreslahdentie Road, and drive for about 9 km. Turn to the right onto Heinirannantie Road, and drive for about 7 km. Turn to the left onto Kalasatamantie Road, and drive to the end of the road, i.e. to the lakeshore. You can enter the following address into your navigator: "Kalasatamantie 25, Kajaani".

• To the Paltaniemi boat harbour: drive from road no. 5 (Kajaani–Iisalmi), following the signposts to Kajaani Airport, onto Paltaniementie Road. Drive past the airport and turn to the right onto Satamatie Road. Drive to the end of the road, i.e. to the lakeshore. You can enter the following address into your navigator: "Satamatie 10, Kajaani”.

• To the boat jetty of Kajaanin kalkkisilta: from road no. 5 (Kajaani–Iisalmi), turn onto Vanha Viitostie (no. 8807). Drive along this road for about 4.3 km and turn to the right onto Ahontie Road (no. 8803). Drive for about 1.3 km and turn, before Linnansilta (“the castle bridge”), to the right onto Kalkkisillantie Road. Drive to the end of the road, i.e. to the boat jetty. You can enter the following address into your navigator: "Kalkkisillantie 1, Kajaani".

• To the Ruunaniemi boat harbour: from road no. 5 (Kajaani–Iisalmi), turn onto Vuoreslahdentie Road, and drive for about 16 km. Turn to the right onto Ruunaniementie Road, and continue to the end of the road, i.e. to the lakeshore. You can enter the following address into your navigator: "Ruunaniementie 70, Kajaani".

  • The Ruunaniemi shore may only be used by the customers of Metsähallitus and the Luonnollisesti Oulujärvi company. At other times, the road is blocked by a gate.