Conway Castle

Built in 1972 by Fenlow Engineering, Conway Castle was supplied to a new seaside railway at Prestatyn in North Wales.

The Prestatyn railway closed in the late 1970s and was relocated to Rudyard Lake in Staffordshire. After a few years this railway moved again to the Suffolk Wildlife Park at Kessingland, where Conway Castle stayed until the early 1990s.

In 1992 Conway Castle and the rest of the Kessingland railway moved to Watford. Following a rebuild in the mid 1990s Conway Castle has been our main diesel locomotive.

Nikki Louise

An 0-6-0 diesel hydraulic locomotive, Nikki Louise was built brand new by R. Prime for the Suffolk Wildlife Park in 1988.  When this railway closed she moved to Watford with Conway Castle, where she was subject to an extensive rebuild before coming into use in the late 1990s.


A 2-6-0 Baldwin style steam locomotive, built by Willis Light Engineering of Perth, Australia in 1993.  She was imported especially for use at Watford and ran for 10 years, before being withdrawn for an overhaul.  After completion of this long running overhaul, she entered service again in April 2018.

Chiltern Shuttle

An 0-6-0 American ‘Switcher’ style locomotive.  Built in 1946 by R.H. Morse as 9½” gauge, she arrived at Watford in the early 1980s when she was rebuilt to our 10¼” gauge.  Her small size belies the fact she packs quite a punch and can pull a full set of 10 coaches!  Last used in 2007, she is currently undergoing a thorough restoration to put her back into working order.

Eric James

A bogie diesel hydraulic locomotive, built by R. Yates in 1979 for the Netherhall Woodland Railway at Maryport in Cumbria. It later ran on a railway at Morecambe Bay, before ending up at the Orchard Farm Lakeside Railway in Yorkshire.  Currently undergoing full rebuild.