- 31 Jarrad St Cottesloe WA, Ph +61 (08) 9385-1689 415 Hay St Subiaco WA, Ph +61 (08) 9388-9072 Australia's Adventure Store Online Whatever the adventure, Mainpeak's got what you need! Mainpeak is one of Australia's premium suppliers of quality outdoor and adventure equipment designed for professionals and casual users alike. We stock some of the best adventure gear in the world. Our staff ...www.mainpeak.com.au