The fifth annual kayak tour to Cockenoe Island will be sponsored Saturday by the Westport Historical Society.

The trip to the 28-acre island a mile off the coast of Westport will depart at 10:30 a.m. and is expected to end about 1 p.m. Rain date is Sept. 14 at 10:30 am.

The tour will be led by David Park, board member of the Norwalk River Watershed Association and author of the guidebook, "Kayaking in and around the Norwalk Islands."

The tour group will land on the island for a stroll, and Park will discuss how the Saugatuck River watershed affects the water quality of Long Island Sound and wildlife of the Norwalk Islands. Cockenoe Island is now home to nesting colonies of egrets, herons and terns.

Cockenoe Island remains open to the public because hundreds of Westport residents and town officials fought against the proposed construction of a nuclear power plant in 1967. The plan was proposed by the United Illuminating Co., which had purchased the island a year earlier from the Smith family. After the nuclear power plan was defeated, the town purchased the island and preserved it as open space.

The group will leave from the Longshore Sailing School in Longshore Club Park. Kayak rentals are paid directly to Longshore and may be reserved by calling 203-226-4646. The guided tour fee is $15 for non-members of the historical society, $13 for members.

Reservations for the tour should be made through the historical society at 203-222-1424. More information is at www.westporthistory.org.