On the ice of Paittasjärvi lake in the Pirttivuopio village a field is cleared of snow every easter. The field consists of one take-off track, an aircraft parking area, and a landing track. The total size of the field equals approx. 50 football fields. During the two easter weeks of flying activity there are more take-offs and landings here than on Arlanda during the same time!
Often there are 50 to 100 flyers and 10 to 30 gliders present. The conditions are favourable for wave flights. E.g. in 1996 70 diamond performances were achieved. The best thing about Pirttivuopio is that waves are created in all wind directions except easterly winds. In the spring, however, easterly winds are very rare.