Both run along the coast but are very different in character.
One features half size replicas of famous narrow gauge engines, the other has the feel of a main line in miniature with quarter scale replicas of standard gauge locomotives with a double track main line.
A run up the line at Fairbourne with locomotive half size B Class replica 'Sherpa' from the footplate is a feature of part one.
In part two the Spring Gala is covered at New Romney including parallel running.
This film covers the operational locomotives and all the lines.