Follow Bedford Avenue all the way down to the A404 Amersham Road (Please be careful of vehicles coming out of the Station Car Parks). On your way, why not do chalfontcrews GC2Q43H and let them know you are doing this series. You could thank them as majority of these Caches are the old locations of their series!
You will not be able to cut through the Train station unless you have an Oyster Card, and TFL may charge you for the privilege!
This one you might want to consider wearing the gloves for!
As good practice, please bring a Pen/ Pencil, a pair of Tweezers, Carrier/ Rubbish Bags (CITO), a pair of Rubber/ Latex Free Gloves maybe, and your stealthy mode!
Watch out for muggles as they can be abundant around here I hope you enjoy these and I hope they don’t stress you too much.
Good Luck