The Hastings Miniature Railway is holding it's end of season gala on September 29/30. There aren't any real details yet about any potential visitors or other attractions, however it has become a tradition to run all available locos with a number of multiple-headed combinations, usually culminating with all locos working the last train from Marine Parade back to Rock-a-Nore.
The HMR is a 10.25" miniature railway running along the seafront of Hastings Old Town:
http://www.hastingsminiaturerailway.co.uk/
Tony