White Dockers and an Eddie Bauer shirt-sleeved button-down shirt were just fine. At least I thought so...and nobody threw me overboard, so, good enough! Maybe they also thought I was an officer? 😉
This was actually a nice evening on our cruse last year through Indonesia. We all gathered on the stern of the ship, where the landing pontoon folds in, and at that point we were just a few feet above the water level but with the electric drive and the smooth seas it was lovely. The wine helped too.
Chris, of course, wore a nice outfit. A simple white linen dress, perfect for the tropics. Around Scandinavia in April, this may not work as well!
Tux definitely not required. Sport coat and tie very acceptable.