Brookhaven is relatively close to Bellport LIRR (3 min drive). I could see them buying a van and hiring a driver to travel back and forth between the location and the station.
In any case, Dia: Beacon is one of the most famous galleries in the world, and it's 90 miles away from New York City. Lots of people commute from the city in the summer to check it out.
I am so glad I went to Dia:Beacon when I visited NYC. It was awesome, absolutely beautiful and literally a breath of fresh air. And I mean literally, I almost forgot what fresh air smelled like after a week in NYC :-P
In any case, Dia: Beacon is one of the most famous galleries in the world, and it's 90 miles away from New York City. Lots of people commute from the city in the summer to check it out.