Saint John Harbour is a natural harbor located in Saint John, New Brunswick, Canada. It serves as a significant port for shipping and trade, providing access to the Bay of Fundy. The harbor is surrounded by a mix of urban and industrial areas, contributing to the local economy. The harbor is also known for its scenic beauty, featuring waterfront parks and walking trails. It is home to various marine activities, including fishing and boating. Additionally, the Saint John waterfront hosts events and festivals, making it a vibrant area for both residents and visitors.