Take strong, comfortable footwear. Heavy boots are probably not required or advised; all you need is something that you can walk in all day, that gives good traction and which supports the ankle. Lightweight modern hiking boots are probably ideal. Remember to wear your boots in thoroughly before you go and get used to walking in them. Blisters will reduce your enjoyment significantly. Using high quality wool socks, moleskin, and/or duct tape applied to trouble areas on the feet will also help you avoid blisters. Check with your local mountaineering or outdoor gear store for more advice.