Back in December I went on a 'Shop Small pub crawl' with a friend taking advantage of the £5 AMEX statement credit of each £10 transaction to sample various pubs and restaurants around the south of England.

This got us thinking if it would be possible to do something similar but with airport lounges as well - arriving at an airport early and trying to visit as many different lounges as possible.

In order to avoid complications with airside transits or re-clearing security, ideally this would all be in one terminal, but if there is an easy airside transit then we might consider that.

Even better would be if said airport is somewhere in Europe that can be reached easily (cheaply) from London...