2nd December It's been a few weeks since we were last out walking. As if to make up for it, this is a long walk. We're filling in the area between Chesham and Berkhamsted. In my mental map these towns are far apart...one is on a quiet branch line at the end of the Metropolitan Line and the other on the West Coast main line. In reality, it's a matter of miles. Nevertheless today they seem to be separated by plenty of hills and valleys. As we leave Cholesbury the rain is billowing across the Common. Thankfully, by the time we approach Berkhamsted the weather has improved and candyfloss clouds chase us across the fields. Turning south we strike out for Whelpley Hill and Bovingdon. We've been through Whelpley Hill before and once again we walk through the middle of a mobile home park for the retired...unnoticed and unremarked, high house prices and poor pensions are quietly changing corners of the Chilterns.