Originally Posted by
FlyinHawaiian
This was answered as follows:
Originally Posted by Mary2e
I always walk it after getting off the UA EWR non stop. It gets the blood flowing again. I don't think it takes me more than 15 minutes, if that long.
https://www.flyertalk.com/forum/28951980-post964.html
The only other thing I'd highlight is that you'll be walking through some open air areas that some of which are covered and some not covered. If you're not used to the heat and humidity - specifically during the daytime - these may affect you and your walking pace and any others in your group who might have a challenge.
David