John Dwyer Park, Caringbah NSW

A sports reserve. Google map here.

I suspect these logs might be seating. In the distance, someone's woodpile. 

Wattlebird Bushland Reserve, Caringbah NSW

Comparison between the above from a relatively new UBD street directory and the current Google Map shows some disparity in the shape of this reserve and the reality. It is closer to three spaces linked by small paths than one space; and the spaces each have distinct characters. The first is the bushland reserve:

 A private tennis court has been erected as an extension to a house in Rawson Pde. This cuts the 'bushland' section of the reserve almost (but not) entirely off from the rest of the space.

 The remaining space allowing access to the bushland space.

 Many of the surrounding houses have visual and gateway access to the space.

The second space adjoins a relatively new complex of two-storey adjoined housing, and is a lightly treed, maintained open area with little evidence of use, perhaps enjoyed largely by surrounding residents only visually. 

The third space has less direct and apparent purpose. Here, a house has one side of its 'garden' open to the wider space. Another unit development leads directly into the space. 

Unnamed reserve in block within Wyralla, Sylvania and Raglan Roads, Miranda, Sydney

A fairly nondescript space perhaps envisaged from the outset as linked to the small bank of shops at its northeast corner.

 One homeowner (a the south east corner) has opened up yardspace to embrace the reserve.

 Walkway through to Wyralla.

Link to Google Maps here