Like many hiking spots outside NYC, you can get to Mount Beacon Park by taking the Metro North line. You'll travel on the line up to Beacon station and then have quite a scenic walk up to the start of the trail to the top of Mount Beacon, which is the highest point in the whole of the Hudson Highlands, reaching a total elevation of 1,611 feet above sea level. The hike is only a mile long and gives you breathtaking views over the Hudson Valley. Map