The cruise ship arrives at Sakata North Port Kominato Wharf（酒田北港古湊ふ頭）.
https://www.city.sakata.lg.jp/sangyo/kotsu/kouwan/shoko0320191023.htmlAfter searching the route on Google Maps, it takes about 13 minutes on foot from Kominato Wharf to arrive at the Kominato（古湊） bus stop of the Runrun Bus（るんるんバス）. Get off at the Kitashinmachi 2-chome（北新町２丁目） bus stop and walk about 7 minutes to arrive at Somaro.
Buses run on Mondays, Wednesdays and Fridays.
https://www.city.sakata.lg.jp/sangyo/kotsu/runrunbas/R040801citybus.fi...So if you arrive on Tuesday, November 21st, you won't be able to board.
If you arrive on Friday, November 3, you can ride.
Somaro
https://www.somaro.net/englishhomeAbout 10 minutes by taxi from Sakata North Port Kominato Wharf to JR Sakata Station.
From there, take a train to JR Tsuruoka Station, 20-30 minutes (depending on the train).
About 40 minutes by bus bound for Yunohama Onsen from JR Tsuruoka Station to Kamo Aquarium.
Get off at Kamo Aquarium bus stop.
https://www.shonaikotsu.jp/local_bus/t004_kamo.htmlKamo Aquarium
https://kamo-kuraage.jp/I've never been there, but personally I think it's hard to go to two places.
I think it's better to do one or the other.
If you want to see Somaro's dance performance, lunch and set starts at 12:00, and performance only starts at 14:00.
Kamo Aquarium is open all year round, but Somaro has days off on weekdays, so check the website in advance to see if it will be open.
In Sakata, Sankyo Warehouse and Honma Museum of Art are also famous.
https://sakatacity.com/https://sakata-kankou.com/https://www.japan-guide.com/e/e7990.htmlI've never been on a cruise ship, but if there is a passenger-only day tour, it might be a good idea to join it.
Check here for train times.
https://www.japan-guide.com/e/e2323.htmlSakata Tourist Information Center
https://tic.jnto.go.jp/eng/detail.php?id=3098Tsuruoka Tourist Information Center
https://tic.jnto.go.jp/eng/detail.php?id=3085
