Lapland (Finnish Lappi) is the northernmost region of Finland.
Lapland is very popular among tourists for its beautiful nature and ski resorts. Because the region draws so many tourists, it is also slightly more expensive than southern Finland. Lapland is also reachable by trains or buses.
Only 184 000 people live in this area, so there are relatively few cars and highways. The further north you go, the fewer cars are on the road. However, hitchhiking to North Cape through Lapland is quite possible and draws many hitchhikers each season.
There are many cars on the A4 though, which is the closest you can get to a main road in Finland and which starts from Helsinki and goes all the way to the northern border of Finnland. The A4 goes through many cities and is therefore good for hitchhiking. It is even possible to get from Helsinki to Rovaniemi (which is the capital of Lapland) in a day. To be on the safe side, it is best to count with a day and a half though.