One of the all time classic diesel railtours - the Class 20 Locomotive Society's 'Three To The Sea' tour of 2 May 1987. 20064 River Sheaf, 20030 River Rother & 20118 River Don are deep in third rail territory here, as they pass through Balcombe station with the 1Z26 09:24 Sheffield to Brighton special, undoubtedly the most famous Class 20 railtour of all time. 20064 & 20030 had only recently been repainted at Tinsley into nearly authentic original green livery.