Last time we had a long layover at JFK, friends picked us up and we went into Manhattan for dinner. We have a great steakhouse in Tribeca (I believe) that we love to eat at when in New York. Five hours might be ok if you can get in the special security lines on your return to JFK.
"The test of a first rate intelligence is the ability to hold two opposed ideas in the mind at the same time and still retain the ability to function."
F Scott Fitzgerald
Seven Seas Navigator (12nts) - San Francisco - Vancouver - May13
Silversea Silver Explorer (23nts) - Kangerlussuaq, Greenland - Nome, Alaska - Aug 14