The Looe Valley Line is an 8 ³⁄₄ miles community railway from Liskeard to Looe in Cornwall, United Kingdom, that follows the valley of the East Looe River for much of its course. It is operated by Great Western Railway and a very iconic bit of the route is when it goes downhill and stops at Coombe Junction Halt and then reverses back to Looe the rolling stock: The British Rail Class 150 Sprinter is a class of diesel multiple-unit passenger trains developed and constructed by BREL York between 1984 and 1987 for use on regional services across the UK these will run 28 services back and forth from Looe To Liskeard The British Rail Class 153 Super Sprinters are single-coach railcars converted from two-coach Class 155 diesel multiple units in the early 1990s. The class was intended for service on rural branch lines where passenger numbers do not justify longer trains, or to boost the capacity on trains with high passengers these will substitute for the class 150 scenarios: Coombe Coupling(10 mins): drive a class 153 down to Coombe junction to couple up to another train waiting Looe Wonderer (25 mins) drive a class 150 from Looe To Liskeard Sandplace Delays (15 mins) run a class 153 from Looe to sandplace only after a tree has fallen on the track near St Keyne Holiday Special (50 mins): run a class 150 from Looe to Liskeard and then from Liskeard to Looe
Freight traffic still runs to Moorswater (AFAIK). If I remember the Rule Book/Sectional Appendix there are restrictions on running coupled formations on the Looe branch due to the tight curvature, certainly through Liskeard Yard.