We've been here in mid-september 2017. The climb is relatively short and not that hard. Once you leave the forest you can see the amazing view of lake Shikotsu and the ocean. The summit was very windy but the view of the huge lava dome was absolutely stunning and even scary.
Drive carefully in the long unpaved road that reaches the parking lot. Allocate 3-4 hours for the trip, including spending time at the summit and walking around the rim.
A lovely hike from the parking lot up to the mountain. It takes roughly an hour to get up from the parking lot and you have several options to get back. From the top you get a stunning view. Bring enough water as there is no chance to get some from parking to the top. Toilets are available at the parking lot so better use them before you start your hike.
Very easy to climb from the car park. Car park gets full in summer time in the weekend. So better be there earlier morning.
Peak of East was very windy, you will need a jacket.
Good things about Tarumae is There will be beautiful view of Lake Shiretoko all the way to the top.
After exercise, recommendation is hot spring to Shiretoko and Marukoma. 1000jpy each but close for visitors by 15:00.
Great short hike spot! We spent about 2.5hours for up and down including taking a rest few times on the way and top of the mountain. The parking area is quite limited so recommend to go early morning especially if you are going on the weekend. The path is very slippery so recommend to wear proper hike shoes.