Late June, midweek (not Friday or Sunday), takes me 1 1/2 hours to drive from Montauk to Westhampton Beach (which is about 10 minutes past Hampton Bays). We've gone out there the last week of June each year and plan to again this year. I'm not sure where you would turn to go to orient point, do you have to go through Riverhead to cut across the south to north shore? I guess you'd be turning in Hampton Bays. If so, just the Montauk to Hampton Bays section would be 1 hour 20 minutes. I don't know about the rest of the trip.