Ruka ski resort and the town of Kuusamo, just south of Lapland, next to Oulanka National Park.
At 66.2° N, Ruka & Kuusamo sees the aurora on most active nights – a Kp of about 2 is usually enough when the sky is dark and clear. Clouds are the biggest obstacle, so always check the cloud forecast above before heading out.
In late December Ruka & Kuusamo has about 16 hours of darkness every night, around the autumn equinox about 8 hours and around the spring equinox about 9 hours; in mid-April still about 5 hours. See when to see the northern lights for a month-by-month guide.