G.H. Riddalls and Sons was a passenger boat operator on the River Dart, in South Devon, UK. They operated on the route from Dartmouth to Totnes, on circular cruises from Dartmouth and also ran the ferry service from Dartmouth to Dittisham. The boats were painted with red hulls and white superstructures, and were marketed as the "Red Cruisers".
In 2000 the company was acquired by Dart Valley Railway plc, operators of the Paignton and Dartmouth Steam Railway, who already owned Riddalls main competitor, Dart Pleasure Craft Ltd. Riddalls newer vessels were merged into the Dart Pleasure Craft fleet, and painted in "River Link" colours, dark blue hulls and white superstructures, whilst the older vessels of both fleets were sold. The Dittisham ferry service was not included in the deal, and was run for several years by David A Riddalls Trading (D.A.R.T), until it too was taken over by Dart Pleasure Craft in 2008.