Stuart....

you definetly want some light weight, gore tex lined boots.

You don't have to go full blown boots, you can get mid height ones that are made very similar to running shoes, and almost as light.

You need the protection from banging your feet into stuff - especially the toes and your arches will thank you

My favorite brands are Merrill and Vasque.

Heck, My wife and I have several pairs if you want to borrow some