Forecast heavy rain has triggered safety closures in national parks and reserves in the Kanangra area and Blue Mountains.
The Marrangaroo and Turon national parks are closed with heavy rain fall predicted to start on Friday and continue through the weekend around the Oberon and Lithgow areas.
River crossings in Marrangaroo and Turon national parks may become dangerous and impassable as a result of the heavy rainfall and closures are being implemented to support public safety.
Local road and walking track closures will be in place within the Gardens of Stone State Conservation Area, Abercrombie River and Wollemi national parks Newnes camping area in Wollemi National Park is also closed.
In Blue Mountains National Park, closures include Burralow Creek campground and the Glenbrook causeway.
Additional weather-related closures may be necessary and visitors should check NPWS Alerts to keep up to date with park closures and the latest safety information.
The NSW National Parks and Wildlife Service (NPWS) is contacting visitors with campground bookings to alert them to the closures.
The parks will be re-opened when it is safe to do so.
