3 days
Easy
Accommodation: 2 nights in a small log cabin (with own toilet but not ensuite), 1 night in a b&b apartment in Lahti
Meals: 3xbreakfast, 1xdinner, 1xpicnic lunch
Transfers: train from Helsinki or Helsinki airport to Lahti and from Lahti to Riihimäki, back to Lahti and again to Helsinki or Helsinki airport
Activities: guided cycling parts (except 3km in Lahti), sauna x 2
Bicycle rental: 2 days and during the mountain bike safari (you can change the bicycle if needed)
Flights to Helsinki
Meals during the cycle tours on days 1 and 2