Aerial view of a harbor, Sydney Harbor, Sydney opera house, Sydney, New South Wales, Australia

Hook hanging in front of boats at harbor, Hall's Harbour, Nova Scotia, Canada

Skyscrapers on the waterfront, Darling Harbor, Sydney, Australia

Skyscrapers on the waterfront, Darling Harbor, Sydney, Australia

Tourists at a harbor, Darling Harbor, Sydney, Australia

Tourists walking on a walkway at a harbor, Darling Harbor, Sydney, Australia

Boats docked at a port, Florida, USA

Opera house on the waterfront, Sydney Opera House, Sydney, New South Wales, Australia

Opera house with a bridge on the waterfront, Sydney Opera House, Sydney Harbor Bridge, Sydney, New South Wales, Australia

Opera house on the waterfront, Sydney Opera House, Sydney, Australia

Boats docked at a harbor, Mykonos Town, Mykonos, Cyclades Islands, Greece

Skyscrapers on the waterfront, Circular Quay, Sydney, Australia

Sydney, Australia

Young man sitting on a bench and holding a map, Sydney Opera House, Sydney, Australia

Two children building a sand castle on the beach and a small boat docked off shore

An illustration of city harbor

A family going on a boat vacation

An illustration of a harbor cruise

Boats docked in a harbor, Darling Harbor, Sydney, Australia