There are lighthouses all over the Island of Sodor, needed to warn ships who get too close to the rocky shore. The first one was seen in the third season and has made regular appearances since.
- Season 5 - Something in the Air, Thomas, Percy and Old Slow Coach and Make Someone Happy
- Season 6 - The Fogman and James and the Red Balloon
- Season 7 - What's the Matter with Henry?, Salty's Stormy Tale, Something Fishy and Gordon and Spencer