good morning
given the last sightseeing cruise departs from 子ノ口 to 休屋港(遊覧船乗り場) at 13.30pm
the next morning may be a better option if you are keen
http://www.toutetsu.co.jp/ship/pdf/laketowada_time_2024.pdfso perhaps half day Towadako half day Hirosaki..
the castle is worth visiting given its Hirayama style and historical importance from Edo Period
although personally i am unsure whether any human can walk the next day after Oirase
as a bonus
night illumination at Hirosaki castle starts from 1Nov if your late Oct visit stretches
into Nov
https://www.hirosaki-kanko.or.jp/individual/cat02_autumn_momiji/poster...if you are taking JR bus Oirase おいらせ21号 at 八戸駅西口 Hachinohe station around 10am
then you can always start the hike from 石ヶ戸 Ishigedo around 11.44am
the walk between 石ヶ戸 Ishigedo and 子ノ口 Nenokuchi is around 3 hours
https://towadako.or.jp/wp-content/themes/towadako/pdf/map/map_oirase.p...with a few breaks in between
you will soon reach 子ノ口 Nenokuchi before 3.30pm
at this point you can then decide whether to walk another 2 hours to 休屋 Yasumiya area
or take the JR bus Oirase おいらせ23号 departing at 3.35pm for the same destination
https://towadako.or.jp/wp-content/themes/towadako/pdf/map/map_yasumiya...please note that for nature lovers with passionate soul
it is widely recommended to take the JR bus みずうみ2号
from 青森駅 at 8.10am reaching 奥入瀬渓流館 at 10.11am
doing a full hike of 5 hours along Oirase to 子ノ口 Nenokuchi
then continue for another 2 hours hiking to 休屋 Yasumiya area
or take the JR bus Oirase おいらせ23号 departing at 3.35pm for the same destination
ps
青森県十和田市 休屋 is やすみや Yasumiya
unsure whether Yasuya is a typo :P
have a wonderful trip~