NSW National Parks Closure Alert: Nattai and 10 Reserves Closed for Aerial Pest Control October 2026

Are you planning a trip to the Southern Highlands or the Greater Blue Mountains this October? You need to immediately review your itinerary if it includes Nattai National Park or surrounding conservation areas, as strict weekday closures are now in effect.

Temporary Weekday Closures for Pest Management

The New South Wales National Parks and Wildlife Service (NPWS) has mandated temporary closures across Nattai National Park and ten additional land reserves to facilitate aerial pest control operations. These restrictions are active from 12 October through 23 October 2026.

The closures specifically target weekdays. All sightseeing, bushwalking, and nature excursions are prohibited during these times. However, the NPWS has explicitly excluded weekends and public holidays from this specific restriction, though other standard safety and fire alerts remain active. Travelers should be aware that these closures are legally enforceable, and unauthorized entry may result in penalties.

Restricted Areas and Access Status

It is a common mistake to assume that moving from one national park to a neighboring reserve will bypass these restrictions. The closure spans eleven distinct units of managed land across the Picton, Bargo, and Mittagong regions.

Area Name	Access Status (Weekdays Oct 12-23)	Practical Traveler Impact
Nattai National Park	Closed	No weekday entry or wilderness trekking
Nattai State Conservation Area	Closed	Remove from weekday itineraries
Burragorang State Conservation Area	Closed	Restricted; lookouts may have exceptions
Joadja Nature Reserve	Closed	No visitor entry permitted
Jellore Flora Reserve	Closed	Exclude from field trips
Wollondilly River Nature Reserve	Closed	No river excursions or access
Bangadilly National Park	Closed	No weekday visits
Guula Ngurra National Park	Closed	Cannot be used as a weekday alternative
Mount Penang Part 11 lands	Closed	Managed lands are off-limits
Upper Nepean State Conservation Area	Closed	Includes Stage 2 lands north of Tourist Road
Barrallier WaterNSW freehold lands	Closed	Not available for public access

Traveler Logistics Guide

Planning a trip during a conservation window requires precise timing to avoid being turned away at a trailhead. Follow these steps to optimize your route:

1. Timing Your Visit The closure window runs from midnight on 12 October until 7:00 PM on 23 October. If you are an overnight hiker, you must verify that your exit date does not fall on a restricted weekday. Use the NSW Government public holiday calendar to confirm any local exemptions.

2. Handling Route Overlaps Be cautious with "boundary-crossing" trails. For example, the Couridjah Corridor walk is a 14km return, grade-four route that spans both Thirlmere Lakes National Park and Nattai National Park. Because it crosses into Nattai, this entire route is unavailable for weekday trips during the closure period.

3. Navigating Thirlmere Lakes If you pivot to Thirlmere Lakes, avoid Pumphouse Road, as it remains closed to vehicles. Use Slades Road for access. Always check the NSW National Parks and Wildlife Service (NPWS) website for the latest updates on the Lake Couridjah precinct parking restrictions.

4. Understanding the "Double Closure" Do not confuse the aerial pest control window with the feral-cat management program. A separate closure in southern Nattai (between Warrels Fire Trail, O’Brien’s Road, and W4 Fire Trail) is active from 14 September to 13 November 2026. This area uses 1080 cartridges via the Felixer programme. Even after the aerial weekday closures end on 23 October, this southern section remains restricted.

Regional Connectivity and Alternatives

For those needing to maintain their regional itineraries, there are three primary alternatives outside the restricted zones. Note that these require their own separate safety checks regarding fire bans and road access.

Alternative Destination	Route Detail	Logistics Note
Thirlmere Lakes Track	6km grade-four loop (1.5–2.5 hrs)	Access via Slades Road only
Bargo State Conservation Area	Little River trail near Buxton	Access via West Parade and Wilson Drive
Morton National Park	West Rim track (3.5km return)	Near Fitzroy Falls; check parking alerts

The economic impact of these parks is significant; 2024–25 data shows 65,590,112 domestic visits statewide, with 72% of international visitors to NSW entering at least one national park. With the visitor economy estimated at A$19.5 billion annually, these temporary closures can disrupt high-value tourism flows, particularly since 44% of visitors cite the park as the sole reason for their trip.

FAQ: Nattai National Park Access 2026

Do I need a permit to enter on weekends? Standard entry rules apply. While the aerial pest control closure is lifted on weekends, you must still check for separate fire restrictions or overnight permits required by the NPWS.

Can I visit the Burragorang lookout on a weekday? The lookout typically operates from 7:00 AM to 7:00 PM with a A$4 vehicle entry fee. However, you must verify the specific lookout exception against the current weekday closure notice before departing.

Is the entire Nattai region closed after October 23? No, but the southern section remains closed until 13 November 2026 due to the feral-cat management program using 1080 cartridges.

What is the difficulty of the alternative Thirlmere Lakes track? It is a grade-four loop of approximately 6km, taking between 1.5 and 2.5 hours to complete.

Check your maps twice; the wilderness does not offer detours.

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