For a chance to win you must purchase 1 (ONE) Optimum Nutrition Gold Standard product from participating retailers and register your details here. Aus. and NZ res. 18+ only. Ends: 11:59pm AEDT 30/11/17. Keep receipt/s. Max 1 entry/ receipt. Must be available for travel 31/3/18-6/4/18. Draw: 2:30pm AEDT 1/12/17, L2/35 Little Bourke Street, Melbourne VIC 3000. Prize (3 to be awarded): Trip for 2 adults to Bali (valued at up to AUD$5,400). Promoter: Glanbia Performance Nutrition Pty Ltd. d/b/a Optimum Nutrition ABN 59 161 129 264, 4/247 Ferntree Gully Rd, Mount Waverley VIC 3149. ACT Permit No. TP 17/01921, NSW Permit No. LTPS/17/18104 and SA Permit No. T17/1813. All Terms & conditions are available here.