Narrabeen Lagoon is a coastal saltwater lagoon, or estuary, located within the Northern Beaches Council area. It is a popular destination for paddle sports including kayaking, canoeing, and stand-up paddleboarding. The lagoon is surrounded by a densely populated area but offers a sense of wilderness and tranquility, particularly on weekdays or during early mornings and sunsets, as it can become crowded on weekends. The flat, 8-kilometer walking trail that encircles the lagoon provides context for the water body's scale and accessibility from shore. Primary access points for launching non-powered craft include the boat ramps at Jamieson Park on The Esplanade in Narrabeen, Bilarong Reserve on Wakehurst Parkway in North Narrabeen, and Middle Creek Reserve on Wakehurst Parkway in Cromer. The concrete ramp at Jamieson Park is a noted hub for aquatic activities and the home of the Narrabeen Lakes Sailing Club, indicating shared use with sailboats. Paddlers should be aware of significant paid parking fees at official car parks, which can range from eight to ten dollars per hour up to a daily maximum. The lagoon's environment features parkland, woodland areas, and boardwalks along its shores. Wildlife such as native water birds are present in the catchment. The water quality is monitored for enterococci, a human health indicator, at the lagoon entrance. The presence of a sailing club suggests conditions suitable for wind-powered craft. The overall paddling experience is peaceful and ideal for exploration, with sunrise and sunset being particularly scenic times to be on the water.