if harding doesn't manage to reach the boat at 7.00 pm at the harbour where would he go?
he obviously stumbles upon the triceratops paddock. a location we haven't seen in the movie.
maybe he passes the t-rex paddock too?
eventually he wont meet any of the persons we saw in the movie.
but he seems to return to the visitors center where the rex is still inside, so maybe he just missed the survivors and arrived a few seconds later after hammond, grant, sattler and malcolm left with the jeep?
I also thought that maybe after Lex rebooted the jurassic park OS in the control room the left tour explorer (05) would start and return to the visitor center.