The trail riding services are both under http://www.arcticnature.fi, and the services of Eräratsut are remaining the same. There are different riding places on the Rovaniemi area, as well as in Patokoski, towards Meltaus and Santavaara during the summer time, then towards Pello on during the winter time.
The winter time groups rides are in Marrasjärvi postal code 97320, Haarainvaarantie 592. Come towards Kittilä road from Rovaniemi, turn on Iisingintie road, then the road between Meltaus and Pello and after that Haarainvaarantie, 5,9 km, all together 68 km from the town. Notice that the navigator easily looses the signal on the forest road, so look in the Google Maps the address before driving yourself.