I feel so lucky to live only about a 1.5 mile run away. There is an entrance on both sides of 59th avenue and one on 67th avenue (more horse). There the trails are easier but all the hills connect together so I love running here for hours. Fairly crowded most days unless you are absolutely crazy and run at midday in the middle of summer. The west 59th entrance has water (even for dogs!), restrooms, and is my home base. If you run there from the south, the sidewalk ends and you can take a trail on the left.