Using Macpac's Ultra lightweight dry bags is the perfect way to keep your essentials dry on damp adventures around the globe. Available in a range of different sizes you can pick the perfect size for clothing, sleeping bag or anything else that you want to keep dry as a bone.
I used one of these to keep my camera dry in my bag on a recent trip and worked perfectly. Easy to stow my camera away in my pocket in this bag to keep protected and dry while on a whale watching tour. Handy for heaps of things, will probably grab another couple.