Yarriabini National Park - The park's steep coastal foothills sustain old-growth forests providing a haven for a range of threatened species.

Yengo National Park - Stretching over 70 km from Wisemans Ferry to the Hunter Valley, Yengo National Park is a wild area of steep gorges and rocky ridges, forming part of the Greater Blue Mountains World Heritage area. Mt Yengo is of cultural significance to local Aboriginal communities and the historic Old Great North Road, an intact example of early 19th century convict road-building, follows the south-east boundary of the park.

Yuraygir National Park - 60 kilometres of striking cliffs, rocky headlands, isolated beaches and quiet lake systems, set against a backdrop of forests, heaths, estuaries and wetlands, make Yuraygir the longest stretch of undeveloped coastline in NSW.