Castletown, Isle of Man church in the town to be dedicated to St Mary, after the title of the "Rushen Abbey of St Mary". It has two intricate and colourful Celtic Revival/Art Nouveau windows, which depict the Annunciation and the Resurrection. These were made by the Clarke Brothers of Dublin. Castletown Methodist Church on Arbory Street, founded in 1932, is part of the Methodist Church in the Isle of Man, which in turn is part of the British Methodist Connexion. It can trace its history back to the visits of the founder of Methodism John Wesley to the town in the 18th century. It
Port St Mary Railway between Douglas and Port Erin. Steam trains operate on the line several times a day during the summer season, and stop at Port St Mary. The village is served by Bus Vannin services to Port Erin, Castletown, Douglas and Onchan. Once a fishing and trading port, the village is still popular with tourists and fishermen, especially during the summer. The inner harbour, with its pier created in 1812, is tidal and dries out from half-tide. The outer harbour, created when the Alfred Pier was built in 1882, is accessible at all tide states - unique amongst the Manx ports.