Our friends at Tasmania Parks and Wildlife Service (smile and be thankful: PWS built the awesome track and huts) recommend that you carry 2L of water with you onto and along the track. These BPA-free bottles are light, sturdy and easy to refill. They also have volume measures – handy for those package or dehydrated meal instructions. Hot tip: like to start your night’s sleep on the toasty side? Fill a water bottle with boiling water before bed (make sure its cap is screwed down proper), wrap it in a sock and hey presto: trackside hot water bottle. And you have bonus pre-filled bottle for the next morning.