The trigs of the Central Coast are found mostly in national parks, although a few remain in small reserves and suburban areas.
- There are only three trig stations in the coastal Bouddi National Park, which vary from quite easy (Bombi) to quite hard (Gerrin). Somewhat unusually for a trig point, both Gerrin and Bouddi are not at the highest points in the area.
- Many of the Brisbane Water National Park trig stations are local attractions: the Warrah Trig, Lyre Trig and Mount Wondabyne are the destination of three popular bushwalks.
- There are not many trig stations in Popran National Park, which is between the Pacific Motorway and the Hawkesbury River. They are generally hidden in thick bush and require some bushwalking and navigation to reach.
- Some of the hardest-to-reach trig stations lie in the rugged Dharug National Park. Although a handful are near bushwalking tracks or firetrails, many of them require a few hours of tough off-track bushwalking to reach
The Bombi Trig is the easiest-to-reach trig station in Bouddi NP. It's located in thick scrub near the edge of the cliff at the end of the Third Point Trail.
There are great views over Brisbane Water from the Lyre Trig, which is accessed via the short Lyre Trig firetrail.
The Myoora Trig in Somersby consists of a steel post supporting a slightly rusted mast and vanes.
The Olive trig station is hidden in the bush just off the bushwalking track to the top of Mount Olive.
A modern steel post with steel vanes, Somersby Trig is located on a small hill on the dge of the industrial area of Somersby.
The Umina trig station was on top of this unusual water reservoir; you can see the steel post that would have held the vanes, but is now holding a radio aerial.
The easy-to-reach Warrah Trig in Brisbane Water National Park offers filtered views, and is a good starting point for some coastal bushwalks.
Singed by the 2019/20 bushfires but still standing, the Wiseman trig station is one of the easiest ones to reach in Dharug NP via the Old Great North Road.
Outstanding 360-degree views from the Wondabyne Trig station, which is on the top of Mount Wondabyne in Brisbane Water National Park