On the days list with the awesome RelictaSpiritus on a day trip to Norfolk is RNAS Pulham.
Quick little explore this one, largely due to the lower level of the bunker being knee deep in water. Though a return trip with some wellies could well be on the cards at some stage… The bunker itself is well worth a look if you can brave the waters, it would also be worth noting to make sure you have a fresh set of batteries in your torch! Loose light down there and you will be stuck as the place is in total darkness! Here’s a little history on the site, once again shamelessly stolen from the interwebs.