20118 & 20169 pass the creamery at Llangefni on 11 September 1993 with the Pathfinder Tours 1Z18 14:32 Amlwch to Cardiff Central 'Anglesey Odyssey' railtour. Just visible in the bushes at the rear of the train are 37075 & 37225, which had worked the tour from Cardiff (the 20s being attached at Llandudno Junction). The branch was about to close with the cessation of Associated Octel's rail operations. Previously various chemicals had been handled, including chlorine, ethylene dibromide and bromide. Extra nasty chemicals to be added to the overburdened road network!