Castries is the capital and largest city of Saint Lucia, a small island country in the Caribbean. It is located on the northwestern coast of the island and is home to approximately 20,000 inhabitants. Castries serves as the commercial and administrative center of Saint Lucia, with government buildings, businesses, and shops concentrated in the city. Some notable landmarks in Castries include Derek Walcott Square, the Cathedral Basilica of the Immaculate Conception, and the Castries Central Market. The city is also a major cruise ship port, with several cruise ships docking in its harbor.