Castletown, Isle of Man network "Bus Vannin", a government-run service which replaced the railway-operated Isle of Man Road Services in 1976. The town is also served by Castletown railway station, on the sole remaining section of the Isle of Man Railway, a 3 ft narrow gauge steam-operated railway which now runs 15 miles from Douglas to Port Erin. The railway station is on the northeasterly edge of the town next to Poulsom Park and playing fields, and was at one time used to transport beer from the Castletown Brewery as well as cattle and other livestock; remnants of the cattle dock are still visible
Castletown, Isle of Man to the west Port St Mary and Port Erin. The older parts of the town are largely built of local grey limestone. At Scarlett, a short distance to the south of the town, there are the remains of an ancient volcano and various other features such as fossils and thick sheets of limestone. The A3 road connects Castletown with Ramsey via St John's, while the A5 road (also known as New Castletown Road as opposed to the Old Castletown Road which takes a more rural route nearer the coast) connects the town with Douglas to the north-east and Port Erin