The nearby Fragrance Garden also will be inaccessible during the same period, according to a news release from Whatcom County Parks and Recreation Department.
The areas will be closed for repairs to irrigation and walkways.
The project also will affect parking for visitors, who are being asked to park at Hovander Homestead Park off River Lea Road instead.
All other areas of the parkland – including trails between Hovander and Tennant Lake, the River Walk, and the Washington Department of Fish and Wildlife boat launch – will remain open during the project.
Details: Call 360-778-5850.