Day one consists of a fairly easy 8km walk to the campsite at the top of Biddlecombe Cascades. From here it's a few minutes' walk to a great spa pool halfway down the cascades.
Although I carried the outer tent fly, I never used it during the walk. There was a shower on the morning of day two however, so it's probably worth carrying one just in case. I usually pitch my tent on the lightweight blue groundsheet you can see here. It provides a little more protection for the tent floor, and also makes it harder to lose things around the campsite.