In a complete reversal of the usual roles, Kurt Russell is the comedic relief, and Martin Short is the straight guy. They're both fun to watch.
The rest of the cast is perfect.
A good comedy only works well if there's a "straight man" to counter the comic. The surprise is Martin Short in that role. Not a buddy movie, but the chemistry between Short & Russell WORKS!
The ocean-going scenes are credible.
* Out of curiosity, I looked up 'The Wandrer,' and there really is a ketch with that name which looks identical to this ship. It recently sold for $340,000