A pitching wedge and a putter is indeed the bare minimum for these. For the 125+ holes you might want to bring a 9 iron. Personally I always like to bring a chipper to a par-3 course, but if the course has bunkers a sand wedge might be handy. I try to take no more than three clubs to a par-3 course, bringing more really defies the idea of it imo.
Welcome to the golf forum by the way!
Welcome to the golf forum by the way!