We have visited Rovaniemi before at Xmas, to see Santa and are now returning in the summer, flying to Rovaniemi before making various stop offs on the way back down to Helsinki on the train. We are thinking of renting a car for a day, hoping to see a bit of the Arctic Circle in particular. Any recommendations for good places to see within an hour or two's drive? Also, are there any good locations for outdoor swimming? Many thanks in advance.