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The Woy Woy Peninsula is a coastal sandplain, naturally covered with wetlands in the west below the Umina escarpment, coastal dunes and Umina Coastal Sandplain Woodland, an endemic ecosystem now existing in remnants including at Brisbane Water High School Umina Campus and between Umina Oval and the caravan park. This paper describes in detail the original vegetation of the peninsula.

The surrounding plateau country of Brisbane Water National Park consists of Hawkesbury Sandstone, which crumbles easily into broken escarpments and sculpted rock formations, with dry sclerophyll forest the predominant ecosystem. 814 plant species, 261 animal species and more than 150 bird species have been recorded in the park.

There is great bushwalking in the national park, accessible from Umina, the Woy Woy Road towards Kariong, Pearl Beach and Patonga; as well as in Bouddi National Park (accessible from Killcare and Wagstaffe); and on Blackwall Mountain reserve. The best time of year for bushwalking is winter and early spring, between April and October, when the weather is cooler and there are no flies, mosquitoes or ticks. The best months to see wildflowers are July, August and September.

The Wildwalks website and mobile app is the best guide to local bushwalks.

Brisbane Water Outdoor Club runs regular bushwalks, from local day walks to longer trips.

National Parks NSW runs a program of Discovery Walks.

Identifying local plants and animals

Burnum Burnum’s Wild Things is an excellent pocket field guide to help identify local plants, birds and animals.

Pl@ntnet is a free plant identification app you can download from the Google Play Store; you simply take a picture of a plant and it tells you what it is.

Paul Dudley’s PBase website and warrahtrig.info both have simple picture guides to local bushflowers. (Use the “In Flower This Month” section of the Warrah Trig Info site.) The Royal Botanical Gardens’ Plantnet: Flora Online is a much more comprehensive guide to NSW native plants.

The area around Warrah Trig is probably the most accessible local location to see a wide variety of native flowers. It is accessible via an unsealed road (OK for 2WD) on the road to Patonga.

Pearl Beach Arboretum has signage identifying some of the many species of plants and trees in its grounds.

Aboriginal and Bushcraft

Girrigirra Aboriginal Tours run short Aboriginal cultural walks in Bouddi National Park visiting rock art sites.

Jake Cassar offers courses in bushcraft, wilderness survival, bushtucker and medicinal plants on Mangrove Mountain.