During recent excavations to renovate the castle,a medieval riverside wharf was discovered,unearthed,recorded and covered over again,in order to preserve it.
see http://www.castlewales.com/sknfrth.html
see http://www.ecastles.co.uk/skenfrith.html
see http://www.castlexplorer.co.uk/wales/skenfrith/skenfrith_photos.php