The whole of the bridge superstructure hinged forwards so the person could fit inside.When that is closed, the person looks through the slit(above the No Smoking sign ) to steer.
I thought it was an RC model at first, then noticed the registration tag,. so had to be a paasenger carrying vessel and also the antenae is for VHF not a RC frequency.
Didnt see if it was "granpa"or the kid that was inside, as they were pulling it on the trailer when I caught up.
Looking at the hull shape and center of gravity,my bets on the kid