Hiking stop on the way from Shari to Sapporo

Hello,
In 3 days from now I'm going to the way from shari to Sapporo in hokkaido by train.
I was thinking that it could be nice to stop somewhere along the road for a short hike, that not the whole day will be wasted if the train ride.
Does someone have an idea of a place like that, where I can stop?
I am traveling with a large suitcase, so I'll have to store it at a visit center or train station.

I was thinking about Akan national park, but from everything I read it looks like there is no bus this time of year from the train station.
Thanks!

The highlights in East Hokkaido are summarized in this map.
http://en.kushiro-lakeakan.com/airportliner/

Shiretoko-Shari 726-819 Kawayu-Onsen 1156-1333 Kushiro 1339-1756 Sapporo
Atosanupuri/Io-Zan/Mt Sulfer is 1.6km/20min away from JR Kawayu Onsen. Rather near.
https://www.tripadvisor.jp/Attraction_Review-g1114386-d1311544-Reviews...
http://www.jalan.net/kankou/spt_01665ab2010003936/

Shiretoko-Shari 726-819 Kawayu-Onsen 1659-1846 Kushiro 1900-2258 Sapporo
One of the best in Hokkaido, Lake Mashu 1st Observation Deck is 13.9km/2:56 from JR Kawayu Onsen. Quite far.
https://www.tripadvisor.jp/Attraction_Review-g1114386-d1384254-Reviews...
http://www.jalan.net/kankou/spt_01665ab2030004283/

Shiretoko-Shari 645-751 Memanbetsu 1250-1619 Asahikawa 1630-1755 Sapporo
In the Lake Abashiri area, there seems to be a 7km lakeside hiking course from JR Memmanbetsu. No bus needed.
https://gurutabi.gnavi.co.jp/i/i_16668/

Shiretoko-Shari 726-958 Kushiro 1025-1107 Onnenai-Shitsugen Tenboidai 1633-1714 Kushiro 1900-2258 Sapporo
Kushiro Marshland is reachable by buses with the costs of 720 and 680 yen. There are 1-hour courses both at Onnenai and Tenbodai. Akan Bus suggests walking through two of them. If so, you need to keep the suitcase at JR Kushiro.
http://www.akanbus.co.jp/localbu/time/senkawa.pdf
http://www.kushiro-shitsugen-np.jp/sansaku/onnenaimokudo/
http://www.kushiro-kankou.or.jp/tenboudai/
http://www.akanbus.co.jp/foreign/en/daytrip/dt05/

Shiretoko-Shari 726-958 Kushiro 1015-1155 Takiguchi 1603-1750 Kushiro 1900-2258 Sapporo
Mt Oakan could be just doable from Kushiro. 6 hours course.
http://www.lake-akan.com/en/thingstodo/245/
http://www.lake-akan.com/en/thingstodo/240/
http://www.lake-akan.com/en/thingstodo/243/
http://www.lake-akan.com/en/wp-content/uploads/2016/05/Mt.Oakan-Trail-...

Shiretoko-Shari 726-958 Kushiro 1015-1205 Akanko 1600-1750 Kushiro 1900-2258 Sapporo
You could go up to Lake Akan. The bus fee is 2700 yen one-way, 4650 yen for a round trip.
http://www.akanbus.co.jp/localbu/akan.htm
http://www.akanbus.co.jp/foreign/en/daytrip/dt01/
http://www.akanbus.co.jp/localbu/time/akan.pdf
http://www.akanbus.co.jp/foreign/en/destination/

Shiretoko-Shari 645-840 Kitami 930-1040 Akanko 1640-1803 Kitami 1815-2253 Sapporo
But, you could get more time from Kitami. 2780/5040 yen. You need to reserve the seat.
http://www.akanbus.co.jp/express/kitami.html
http://www.akanbus.co.jp/foreign/en/express/kitami/
http://www.akanbus.co.jp/foreign/en/express/
http://www.uu-hokkaido.com/corporate/akanbus.shtml

Bokke would be rather easy.
http://www.lake-akan.com/en/thingstodo/242/

Mt Hakuto needs climbing.
http://www.lake-akan.com/en/wp-content/uploads/2016/05/Mt.Meakan-Trail...
http://www.lake-akan.com/en/thingstodo/236/

Most popular Lake Onneto has no public transports.
http://www.lake-akan.com/en/thingstodo/239/
http://www.lake-akan.com/en/thingstodo_category/explore-nature/

Thank you very much!!! I'll check that out

Sorry for the double post, but do you happened to know if there is some going at :
Genseikaen Station?
It seems like there is something there, but couldn't find English information.

Shiretoko-Shari 645-743 Yobito 1211-1307 Kitami 1325-1619 Asahikawa 1630-1755 Sapporo
I found another footpath in Lake Abashiri. It is a course around Yobito Peninsula. 7 km / 2:15 for one leg.
http://abashiri.jp/tabinavi/02spot/files/05aba07abashiri01.pdf

Lake Tofutsu has some English info.
http://www.tofutsu-ko.jp/pamphlet/selfguide-en.pdf
http://www.tofutsu-ko.jp/english/

Tofutsu-ko Waterfowl and Wetland Center is near JR Kitahama. You could borrow bicycles there.
http://www.tofutsu-ko.jp/event-notice/%E3%82%A8%E3%82%B3%E3%83%84%E3%8...

Koshimizu Wild Flower Preserve Information Center "Hana" is neighboring to JR Genseikaen station. Here are also some bicycles with no rent.
http://www.town.koshimizu.hokkaido.jp/hotnews/files/00003000/00003092/...
http://www.town.koshimizu.hokkaido.jp/hotnews/detail/00000181.html
http://www.town.koshimizu.hokkaido.jp/hotnews/detail/00000164.html
http://www.town.koshimizu.hokkaido.jp/hotnews/detail/00003092.html

Furetoi Observatory is near JR Hamakoshimizu.
http://www.town.koshimizu.hokkaido.jp/hotnews/detail/00000107.html

One more. Now, Akan National Park has been renamed as Akan-Mashu National Park. The change happened in this summer. The map still uses the old name.
https://www.env.go.jp/en/nature/nps/park/akan/index.html
https://www.env.go.jp/park/common/data/03_akan_map_e.pdf

A bunch of English brochures is gathered here.
http://en.visit-eastern-hokkaido.jp/plan_your_trip/plan_category/pamph...

Some pickups from there.

Koshimizu Wild Flower Park:
http://ja.visit-eastern-hokkaido.jp/wp-content/uploads/2016/02/0e5a09b...

Abashiri:
http://ja.visit-eastern-hokkaido.jp/wp-content/uploads/2016/02/9ab3788...
Cycling from Lake Tofutsu to Lake Abashiri seems to be possible.

Mt. Ioh Natural Trail (55 min):
http://ja.visit-eastern-hokkaido.jp/wp-content/uploads/2016/02/d85b284...

Climbing Mt. Mashu:
http://ja.visit-eastern-hokkaido.jp/wp-content/uploads/2016/02/d85b284...
2:10/10.5km from JR Kawayu-Onsen to Mashu 3rd Observation Deck.

Kushiro:
http://ja.visit-eastern-hokkaido.jp/wp-content/uploads/2016/02/89b043f...
Kushiro Marsh One Day Course suggests bicycle rental from JR Toro station.Cafe Norroko&8001 rents an electric bicycle from 800 to 1800. 600yen/hour +300yen/30min or 2100yen/day.
http://hirotravel.com/hokkaidou/kusirositugen/rentasaikuru.html

Toro Lakeside Trail:
https://www.env.go.jp/en/nature/nps/park/kushiro/guide/view.html
https://www.env.go.jp/park/common/data/04_kushiro_map_e.pdf
https://www.env.go.jp/en/nature/nps/park/kushiro/index.html
You could just take a trail along Lake Toro there. This could be one of the easiest for a train rider.

Bicycle rental is also available at Kawayu Onsen.
Turism Teshikaga from 900 to 1800. 500yen/2hour, 800yen/4hour, or 1500yen/day.
https://tourism-teshikaga.co.jp/rentacycle/
https://tourism-teshikaga.co.jp/wp-content/uploads/2017/04/kawayucycli...

A bus runs from JR Kawayu-Onsen to Kawayu Onsen downtown. 280yen/10min.
http://www.ekinavi-net.jp/railway/jr-senmo/kawayuonsen/index.html

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Kushiro Marsh One Day Course suggests bicycle rental from JR Toro station. Cafe Norroko&8001 rents an electric bicycle from 800 to 1800. 600yen/hour +300yen/30min or 2100yen/day.
http://hirotravel.com/hokkaidou/kusirositugen/rentasaikuru.html

Toro Lakeside Trail:
https://www.env.go.jp/en/nature/nps/park/kushiro/guide/view.html
https://www.env.go.jp/park/common/data/04_kushiro_map_e.pdf
https://www.env.go.jp/en/nature/nps/park/kushiro/index.html
You could just take a trail along Lake Toro there. This could be one of the easiest for a train rider.

Bicycle rental is also available at Kawayu Onsen. Tourism Teshikaga from 900 to 1800. 500yen/2hour, 800yen/4hour, or 1500yen/day.
https://tourism-teshikaga.co.jp/rentacycle/
https://tourism-teshikaga.co.jp/wp-content/uploads/2017/04/kawayucycli...

A bus runs from JR Kawayu-Onsen to Kawayu Onsen downtown. 280yen/10min.
http://www.ekinavi-net.jp/railway/jr-senmo/kawayuonsen/index.html