Always see this tower on the way to Chitose Airport by train. Finally made a visit to this park. I took a local train from Sapporo and alight at Shinrinkoen Station. Turn Right when exit from the ticket machine, there is a underpass leading to the other side of the station which have to walk 20-25 minutes to reach this Park. Alternatively, take bus No 22 from Shin Chitose and alight at the parking area of this park.
This is a big park and with few visitors even on weekend. Should plan to visit the Historical village together, so can covers both places on the same day.