Terrain
The start of the walk is relatively flat and easy but there are some longish stretches of soft sand. As we continue toward Solea Falls, the terrain becomes more difficult with lots of rock hopping and some scrambling over large boulders. Above the falls, the terrain gets easier once more.
Vegetation
Most of the vegetation should be fairly open but it is likely that there will be some thick scrub to push through. It is not likely that there will be much. Scrub conditions vary dramatically from year to year so we can't say how much you will encounter.
Generally 4-6 hours. On some days, you need carry your pack for only a couple of hours after which you can rest or explore without packs.
You need to carry 7-8 days of food.