40 mins

1.7 km Circuit

58 m

Easy track
This walk explores the bushy interior section of Nielsen Park. On this walk, you will visit historic Greycliffe House and the Steele Point Gun Emplacement. The walk climbs over the Mount Trefle summit. At just over 40m above sea level, I suspect most walkers will not consider it much of a mountain, but an enjoyable walk all the same. Most of this walk follows concrete and sealed paths, and there are some great harbour views on the second half of this walk.

Maps for the Mt Trefle 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.
Sydney Heads 1:25 000 Map Series 91302N SYDNEY HEADS NSW-91302N
Sydney 1:100 000 Map Series 9130 SYDNEY 9130

Cross sectional view of the Mt Trefle bushwalking track

Analysis and summary of the altitude variation on the Mt Trefle

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 1.7 km
Time 40 mins

Grade 2/6

Easy track
AS 2156.1 Gradient Gentle hills with occasional steps (2/6)
Quality of track Clear and well formed track or trail (2/6)
Signs Clearly signposted (1/6)
Experience Required No experience required (1/6)
Weather Weather generally has little impact on safety (1/6)
Infrastructure Generally useful facilities (such as fenced cliffs and seats) (1/6)

Some more details of this walks Grading

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


Around 1km of this walk is flat with no steps, whilst the remaining 700m has gentle hills with occasional steps.

Quality of track

Around 1.2km of this walk follows a smooth and hardened path, whilst the remaining 540m follows a clear and well formed track or trail.


This whole walk, 1.7km is clearly signposted.

Experience Required

This whole walk, 1.7km requires no previous bushwalking experience.


This whole walk, 1.7km is not usually affected by severe weather events (that would unexpectedly impact safety and navigation).


This whole walk, 1.7km is close to useful facilities (such as fenced cliffs and seats).

Similar walks

A list of walks that share part of the track with the Mt Trefle walk.

Other Nearby walks

A list of walks that start near the Mt Trefle walk.

Plan your trip to and from the walk here

The Mt Trefle walk starts and ends at the Greycliffe Ave Car Park (gps: -33.850846, 151.26857)
Your transport options to Greycliffe Ave Car Park are by;
Bus. (get details)
Car. There is free parking available.
(get details)

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 Metropolitan weather district always check the formal BOM forecast or pdf before starting your walk.

Forecast snapshot

Park Information & Alerts



Short URL = http://wild.tl/mtt

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 🙂