My family of 4 is planning to visit famous Snow Monkey Park in Nagano during trip in mid Dec. We will be taking Hokuriku Shinkansen in the morning, travel from Kanazawa Station to Nagano station. We intend to leave luggages in hotel or lockers near station and take day tour to the park. We understand that there is local guide or tour package that can bring us to the park as well as temple. Is it possible to arrange such tour within the day after arriving Nagano? Is traveling to the park only starts after 10am possible? Will the walking path to the park be difficult during period from 18/Dec to 22/Dec? This is our first time visiting Nagano. We appreciate if you could provide us with some advice please. Thank you in advance !
I think you may be referring to these tours by Snow Monkey Resorts. We are not affiliated with them, so please see their website for more details.
The Snow Monkey Park is open from 9:00 to 16:00, so you can visit it at any time in that window. You can see bus timetables for the Snow Monkey Park here. You can get off at either the Kanbayashi bus stop or Snow Monkey Park bus stop. You may also want to purchase the Snow Monkey Pass for your trip.
As for the trail to the park, there may be some snow, ice, or mud in mid-December. You may want to bring winter boots with you (and warm winter wear). There is also a shop at the beginning of the trail that rents winter gear.
I hope that answers your question!