The town of Xiàmén is on the island of the same name. It's connected to the mainland by a 5km-long causeway bearing a train line, road and footpath. The interesting part of Xiàmén is near the western (waterfront) district, directly opposite the small island of Gǔlàng Yǔ. This is the old area of town, known for its colonial architecture, parks and winding streets.