I always bring bags/gloves/grabber with me whenever I visit the local national park. The rubbish is particularly bad in popular picnic spots, like the areas around Audley^1. The NPWS staff do a great job of keeping the parks clean, but they can't get everything. You'd be shocked how quickly you can fill a garbage bag on a short walk. The most common items by far are disposable coffee cups and cigarette packets (with…
When my brother and I were young, my parents used to pay us 5 cents for every piece of rubbish we picked up on bushwalks. We got a few dollars to buy the things they would have invariably bought for us anyway, and the walking tracks became, for at least an hour or so, free from garbage.