We did something close a few years ago in Amsterdam. Stored the luggage & hopped on the train to downtown for lunch and a few hours of sight-seeing.
We had been there before, so it was not totally foreign.
We still laugh, however, how we couldn't find the train at the airport. Signs everywhere, but we just didn't see them.
I now so feel for the folks on The Amazing Race.
Anyway, Helen, plan the time with care & have some fun!

Doug