Same with Oakington with Vampires. On a damp day in the afternoon crud would rise to about 200 ft. The trick was to find Ely Cathedral which was on top of a hill in the town and was always above the fog. Over the top heading 230 which was an extension of runway 23 at Oakington for three minutes at 180 knots.
After two minutes drop down to 500 ft and at three minutes you could see the approach lights through the gloom. Drop the flaps and clogs and land.