u/Critical-Part8283

We are a group of 10 who will be walking part of the Cotswold Way, inn to inn, starting in Chipping Campden. However, our first 5 days of our trip will be in London. What are the best options for traveling from London to visit Stonehenge, and then on to Chipping Campden to start our walk? (Staying at Woolmarket House). What are some ways that would be cost effective? The day of travel is completely flexible, timing-wise.