"This is a spa hotel. They ask you to change into, not expected to, lounge/spa clothing which once passed the shock,was lovely. Onsen on site was extremely nice.
One thing I will say was book dinner as soon as you arrive or before as we tried to but the restaurant was full and everything else was closed as it was a Sunday, so no dinner for us. The alternative was to wait for supper at 22:30 for ramen, which we did. Breakfast was superb and faultless."