One of my favourite places is Epping Forest where I can walk for miles if I choose but just as easily do a few circuits of the lake. There’s a great cafe looking out over the forest where I continue to be inspired as I have a coffee and pull it all together. You can jot down ideas in your notebook that will have come up for you as you walked. Though on many occasions I use the dictaphone facility on my phone to capture ideas as I walk. I have often written the outline for a speech or a blog that way and sometimes the whole thing.
This is the time to close your mind to everything that isn’t important such as all that stuff you left back at base and open your mind to the possibilities of the questions you have or the task at hand. Just let things flow and see what comes up. Don’t be tempted to overthink. I find this works really well from a brainstorming point of view.
You can read what you have written already as you walk, if you are at the editing stage or in fact stop on a tree trunk, bench or boulder and think further. You don’t have to walk all the time.