You can't load up Redd's vessel the first occasion when he visits. After you've purchased your first bit of craftsmanship, hold up a couple of Animal Crossing Bells days until he shows up once more.
On his subsequent visit, you'll see his shop symbol on your guide, however you despite everything won't have the option to board his boat — your character will say the pontoon looks scrappy and you shouldn't board without consent.
So as to board Redd's boat, you'll have to www.lolga.com search him out once more. He's meandering some place around your island, so discover him and address him.