If you are looking for a relatively easy hike, with magnificent views and a little off the beaten track. Try Wallys cave on Lions Head.
The Lions Head hike itself and spectacular. Anyone of moderate fitness can reach the top in a little over an hour, and the views are quite amazing.
But Wallys cave can be reached in 30 mins and takes you straight off the standard route and up to a wonderful cavern looking out over the 12 apostles.
Give me a call if you are keen to explore and have very little time. It is so worth the effort!