Yes they do... have seen several articles in the flying mags about doing it. Used to have to fly via anywhere BUT Spain (i.e. hop to/from Tangiers) to get there, but with the agreement that got signed a couple of weeks ago between the UK & Spanish govts this restricted has been lifted for all civilian flights. Presumably this covers "light" visitors too.
Sure someone with more expertise will pop along with more info.
PS> Think this message should be under "Private Flying" BTW, not among the Big Boyz chatroom here...?!?!?