Patonga to Somersby

Download & Print Map and Notes

3 Days

41.5 km One way

1811 m

Hard track
This three day walk follows the Great North Walk from Patonga, through Brisbane Waters National Park, to the Somersby General Store. The two campsites can be found near the summit of Mt Wondabyne, and along the banks of the Mooney Mooney Creek. Water is available from Kariong Brook and often from tributaries feeding into the Mooney Mooney Creek, and should be treated before drinking.

Maps for the Patonga to Somersby walk

You can download the PDF for this walk to print a map.
These maps below cover the walk and the wider area around the walk, they are worth carrying for safety reasons.
Gunderman 1:25 000 Map Series 91313S GUNDERMAN NSW-91313S
Gosford 1:25 000 Map Series 91312S GOSFORD NSW-91312S
Wyong 1:25 000 Map Series 91312N WYONG NSW-91312N
Broken Bay 1:25 000 Map Series 91301N BROKEN BAY NSW-91301N
Ku-ring-gai Chase National Park Tourist Map 1:40 000 Map Series CMA Ku-ring-gai Chase National Park Tourist Map CMA Ku-ring-gai Chase National Park Tourist Map
Gosford 1:100 000 Map Series 9131 GOSFORD 9131
Sydney 1:100 000 Map Series 9130 SYDNEY 9130

Cross sectional view of the Patonga to Somersby bushwalking track

Analysis and summary of the altitude variation on the Patonga to Somersby

Daily actual walking time estimates

Day Walking Time Length
1 3 hrs 55 mins 11.3 km
2 6 hrs 32 mins 17.8 km
3 4 hrs 28 mins 12.7 km

Overview of this walks grade – based on the AS 2156.1 – 2001

Under this standard, a walk is graded based on the most difficult section of the walk.

Length 41.5 km
Time 3 Days

Grade 4/6

Hard track
AS 2156.1 Gradient Very steep (4/6)
Quality of track Rough track, where fallen trees and other obstacles are likely (4/6)
Signs Minimal directional signs (4/6)
Experience Required Moderate level of bushwalking experience recommended (4/6)
Weather Storms may impact on navigation and safety (3/6)
Infrastructure Limited facilities (such as cliffs not fenced, significant creeks not bridged) (4/6)

Some more details of this walks Grading

Here is a bit more details explaining grading looking at sections of the walk


14km of this walk has gentle hills with occasional steps and another 14km has short steep hills. Whilst another 8km is very steep and the remaining 5km is flat with no steps.

Quality of track

19km of this walk follows a clear and well formed track or trail and another 10km follows a formed track, with some branches and other obstacles. Whilst another 8km follows a rough track, where fallen trees and other obstacles are likely and the remaining 3.9km follows a smooth and hardened path.


27km of this walk has directional signs at most intersection and another 11km is clearly signposted. The remaining (3.5km) has minimal directional signs.

Experience Required

26km of this walk requires no previous bushwalking experience and another 15km requires some bushwalking experience. The remaining (1.3km) requires a leader a with moderate level of bushwalking experience.


Around 39km of this walk is not usually affected by severe weather events (that would unexpectedly impact safety and navigation), whilst the remaining 2.6km is affected by storms that may impact your navigation and safety.


31km of this walk is close to useful facilities (such as fenced cliffs and seats) and another 9km has limited facilities (such as not all cliffs fenced). The remaining (1.7km) has limited facilities (such as cliffs not fenced, significant creeks not bridged).

Similar walks

A list of walks that share part of the track with the Patonga to Somersby walk.

Other Nearby walks

A list of walks that start near the Patonga to Somersby walk.

Fire Danger

Each park may have its own fire ban, this rating is only valid for today and is based on information from the RFS Please check the RFS Website for more information.

Weather Forest

This walk starts in the Hunter weather district always check the formal BOM forecast or pdf before starting your walk.

Forecast snapshot

Park Information & Alerts



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Gallery images
There are other downloads I am still working on.
You will probably need to login to access these — still all free.
* KML (google earth file)
* GPX (GPS file)

Special Maps/ brochures
* A3 topo maps
* PDF with Lands Topo map base
* PDF with arial image (and map overlay)
I wanted to get the main site live first, this extra stuff will come in time.
Happy walking
Matt 🙂