^It is more like 16-17 miles (rather than 20) from the Garden, a reasonable 1 day distance. Anyone in good shape should be able to bag it in a day. Most of the people I know who have hiked it did in a day (myself included).
"No matter how big a guy might be, Nicky would take him on. You beat Nicky with fists, he comes back with a bat. You beat him with a knife, he comes back with a gun. And you beat him with a gun, you better kill him, because he’ll keep coming back and back until one of you is dead."