During the salmon migration season from late October through December, when wild salmon can be observed through the 10 underwater viewing windows in the basement. The hatchery and aquarium are accessible year-round.
A salmon-salting workshop runs from late November to mid-December at the on-site Echigo-Murakami Sannomaruryu Sake-shiobiki Dojo. Sessions last two hours and participants leave with their own salt-cured salmon.
It is Japan's first salmon museum, featuring a 50-meter underground corridor built beneath the Tane River with 10 windows looking directly into the riverbed — allowing views of wild salmon during migration season.
A single bilingual information sheet is provided at the entrance. All other signage and exhibit labels are in Japanese only. The aquariums, hatchery, and underground observation windows remain accessible regardless of language.