Tregastel (39,000) serves as the Kingdom’s main port. It is located at the mouth of the River Baise , and is named for the three castles there. There is one castle on the north side of the river, one south of the river, on a precipice jutting into the sea and another slightly interior, along the south bank of the river. This is home of the country’s main military bases, and it serves to protect Lutetia, the coast and the southern border region. There is a large harbor, where ocean going vessels unload, and goods are loaded onto river traffic, and vice versa. The city features many workshops engaged in furniture production as well.