Starting from the Mack Creek (Gate 4) car park on Humbug Scrub Road, Yattalunga, this walk takes you on a circuit around the Mack Creek sec­tion of Para Wirra Conservation Park via the Horseplay Trail. This moderately easy loop meanders around the Mack Creek section at the southern end of Para Wirra Conservation Park, passing through various native bushland habitats. The walk initially follows the Mack Creek Bound­ary Track, parallel to Humbug Scrub Road, then continues alongside Bassnet Road, crossing Mack Creek before following Frank Barker Road along the park's southern boundary. After passing an optional side trip to the Orchid Dam, the walk follows the Ruins Track, crossing the creek again before following the Mack Creek Bound­ary Track back to the car park. Horse riding is also permitted on this trail. Walkers should note that a short section along Frank Barker Road is a dead-end sealed road shared with vehicles. This loop consists of wide fire tracks, unsealed roads and sealed roads, with compacted natural surfaces, bitumen surfaces, short steep hills and creek crossings, suitable for average fitness levels. Let us begin by acknowledging the Traditional Custodians of the land on which we travel today, and pay our respects to their Elders past and present.