The easiest way would be to take the Lexington Avenue subway Uptown, and then enter at the southeast corner of the park.
At Grand Central Station, take the Uptown 4, 5, or 6 trains(the green line, aka the IRT, aka the Lexington Avenue Line) from East 42nd Street (Grand Central) to East 59th Street. Besides the S shuttle train (color code grey) to West 42nd Street (Times Square), the 4-5-6 is the only subway you can catch at Grand Central Station, so it shouldn't be too confusing.
At East 59th Street, you will exit the subway on the east side of Lexington Avenue. Cross to the west side of Lexington, and walk west on East 59th Street until you hit Fifth Avenue (it goes Lexington ---> Park ---> Madison ---> Fifth).
The southeast corner of Central Park is on East 59th Street and 5th Avenue.
Edited to add: you know, the south side of Central Park is great, but in my opinion, you'd really be missing something if you didn't explore the north side, too. Central Park is just a mile wide, but it's two and a half miles long, so if you enter on the south side, and you're not up for a long walk, you'll probably miss out on the north side of the park.
The area of the park from approximately 72nd Street to 79th Street (if the streets ran through the park) features the Central Park Lake and the Ramble. The Ramble is basically a series of tiny intertwined dirt paths, with little wooden bridges (called "kissing bridges") and little streams and waterfalls. When you're in the Ramble, you can't even see the buildings outside of the park, so it really feels like you're in the woods.
The Ramble is awesome, but there is another Ramble (called the North Woods) at the north end of the park, and in my opinion, it is just as awesome, if not even more awesome. There's the same kind of intertwining dirt paths, with the same kind of little kissing bridges, but there's a bigger stream, a bigger waterfall that you can walk across, and there is even another lake. Actually, there are two! A bigger one at the northeast corner of the park, called the Harlem Meer, and a smaller one that is just called the Pond (there is also a pond at the southeast corner of the park, just called the Pond. And the lake at approximately 72nd Street is just called the Lake. Honestly, I don't know why some of the bodies of water in Central Park don't have real names).
Click on my User name (where it says "First Answer by LimeAid") to see a couple of pictures of the north end of the park. Clicking on my User name will take you to my User page; scroll to the bottom.
Anyway, to get to the north end of Central Park from Grand Central Station, you take the S shuttle train (color code grey) west across 42nd Street, from Grand Central Station (East 42nd) to Times Square (West 42nd).
At the Times Square Station, transfer to the Uptown 1 train(of the 1-2-3, the red line, aka the Broadway line or BMT). Take the Uptown 1 train from Times Square (West 42nd) to 110th Street. Do NOT take the 2 or 3 trains, as they are express trains and do not stop at 110th.
When you exit the subway, you will be on the north side of Central Park, sort of in the middle, but closer to the northeast corner of the park. In fact, you will enter the park right where the Harlem Meer is.
See the Related Link below for a complete NYC subway map.
Grand Central Terminal is the name of the railroad station at 42nd St/Park Avenue. Grand Central Station is the name of the subway station which is below Grand Central Terminal.
Not possible these days. Amtrak no longer has service to Grand Central Terminal. BTW - Grand Central Station is the subway station. The railroad station is Grand Central Terminal.
Grand Central Station & Terminal are located at East 42nd Street between Park and Lexington Avenues. Grand Central Station is the subway station, where you can catch the 4-5-6 (the dark green line, aka the Lexington Avenue Line) or the S shuttle train to Times Square. Grand Central Terminal is the railroad terminal, for trains that are not part of the New York City subway system (like MetroNorth commuter trains).
The Antwerp central station is bigger than the Grand Central rail station.
Seoul Grand Park Station was created in 1994.
the city that grand central station is in is new york city.
Grand Central Station - Chicago - was created in 1890.
Grand Central Station - Chicago - ended in 1969.
Central Park - CTA station - was created in 1951.
Central Park Metrolink station was created in 2005.
Grand Central Station is at the corner of 42nd St and Park Ave, in Manhattan. To get to Central Park a person would simply go west two blocks to Madison St and then go North to 60th St. Going one more block west, to 5th Ave, would put a person right at the southern tip of Central Park.
Grand Central - IRT elevated station - ended in 1923.