I live in Queens, right near the border of Nassau County. It's about a 25 minute drive to Adelphi from where I live. I'm not exactly sure how far Adelphi is from the Garden City LIRR train station, because I've never taken that train. It's between a 43 and 48 minute train ride from Penn Station though, if you choose to live in NYC. http://lirr42.mta.info/schedules.php Personally, I would suggest living in a neighboring town in Long Island and commuting by car, if that's a feasible option for you. I wouldn't want to commute from Manhattan to Garden City, but that's my personal preference. If you live in Queens or Long Island, it's not difficult to (and many people do) go to the city on weekends.