My boat experience as a little kid was not too positive.
My dad owned a fairly decent size boat, and it is PITA to maintain, clean , haul. My pure guess is about 18-22'? I know it can easily fit 15 people.
I think our entire family went to ride on a boat (fishing combo) at least twice a mo for 2 years. It gets windy. It gets real hot, and real cold fast. We also went through the seaweed area. It was scary.
Best memories was we caught a huge crab. On the same year, we caught so many mackerels.
Worst memory was, my dad decide to take us to Catalina Island on a boat. Although it was clear sunny day, it was one of the scariest boating moment.