Wondabyne is situated in Brisbane Waters National Park on the banks of Mullet River, which feeds into the Hawkesbury River north of Brooklyn. The area is defined by the National Park's flora and fauna, the quarry, railway station and a few houses sitting above the water around the river. The quarry produced sandstone building materials, used in the construction of the National War Memorial in Canberra. More recently, in 2000, the quarry was re-opened for restoration of St Mary's Cathedral spire in Sydney. Wondabyne Station, named after the nearby Mt Wondabyne, was built in 1889 and exclusively used for the quarry - it was then known as Mullet Creek Station. The station is one of the smallest on the line and one of very few railway stations in a NSW National Park. When you catch the train to Wondabyne, let the guard know you want to get off at Wondabyne Station, otherwise the train will not stop. Travel in the last carriage as the platform is very short. To catch the train from Wondabyne, wave to the driver.

The Phil Houghton Bridge is a metal suspension bridge that crosses Piles Creek. It is part of the Great North Walk and replaces an older bridge, with part still visible upstream. The bridge can hold up to 8 people and feels very stable. There are great views both up and downstream half way across this bridge. There is a clearing on the northern side that people have used for camping.

The Sydney-Hawkesbury stretch of the Pacific Highway was built in the 1920s, replacing a route that had existed since the 1830s. The original Peats Ferry Road was cut by a settler named George Peat, making a track to his property on the banks of the Hawkesbury River. This road became the 'Old Pacific Highway' upon the opening of the F3, or Sydney-Newcastle Freeway, in the 1980s. This bridge is the smaller of two crossing Mooney Mooney Creek - the other, Mooney Mooney Bridge, is part of the F3 freeway and is the highest road bridge in Australia.

This is clearing is beside the wide Mooney Mooney Creek and provides a large flat area to pitch a few tents. There are some high tension power lines nearby and you can hear the hum of the F3 from here, so it is not the most remote campsite. There are no facilities or water (the creek is salty). All that said it is still a pleasant spot beside the wide creek to rest for a while or for the night.

This signposted campsite is sits among the tall eucalypt and bracken fern forest beside the Mooney Mooney Creek. This is a very pleasant flat clearing to spend a night, there is a small metal fireplace hotplate and room for a small number of tents. There is No drinking water or other facilities at this campsite (Mooney Mooney Creek is salty at this point, treatable water may be found about 2km north).

Lower Mooney Dam is located on the Mooney Mooney Creek, about 21 km upstream from the Hawkesbury River. In March 1938 the Gosford Mayor turned the tap to add the water from this dam into the small town water supply of the time. It is a concrete arch dam, with a capacity of 1,000 megalitres, and was superseded by the more than 4 times larger 'Upper Mooney Dam' in 1982. There is a set of timber steps and a faint track that leads down to the waters edge on the uphill side of the dam wall, the dam wall is fenced and is clearly out of bounds. A sign reminds visitors that swimming is not allowed.

This is a small signposted campsite set among heath, grass tress, scribbly gums and aother eucalpyts. The clearing is flat and sandy and provides room to set up a few tents with and a small metal fireplace with hotplate. There is no water or other facilites here.

Somersby Store offers a good place to have lunch or pick up the basic food supplies. The store serves hot food including burgers, chips, pies etc and cold drinks. Opening hours are 6am - 6pm Monday to Friday and 6.30am to 4pm on Saturdays (closed Sundays). There is a pay phone and a bus stop however services are limited to two buses a day. Contact details are (02)4372 1269, at 841 Wisemans Ferry Road Somersby, NSW 2250. The store owners are happy for you to phone ahead. If you are a large group you can order ahead to save the stress. I always encourage people to use local stores like this on track, but since it is a small store it is worth phoning ahead to see what they have what you want in stock.

A Great North Walk signposted campsite with plenty of room for a few tents but providing minimal facilities ie. no water, toilets or tables however there is a bench and barbeque plate and room for a fire.

This is a small camping area on the side of Tooheys Road, with room for a small number of tents but providing no facilities.

This campsite is in a small clearing at Stringy Bark Point, just on the southern side of the bridge. This campsite provides room for a small campfire and a few tents. Water is usually available from the creek running by the campsite, please treat before drinking.

A basic clearing for an overnight stay, providing room for a fire and small number of tents. There is no water at this campsite so you will need to carry sufficient.

Yarramalong Store is good place to have lunch or pick up the basic food supplies. The store serves hot food including burgers, chips, pies etc as well as cold drinks. The store is open 7am to 7pm, 7 days a week. There is a pay phone outside and a tap to refill water, and the store has its own fuel pump. Phone on (02)4356 1222. The address is 1625 Yarramalong Rd, Yarramalong NSW 2259. I always encourage people to use local stores like this on track, but since it is a small store it is worth phoning ahead to see what they have what you want in stock. It is a small store so choice is limited.