Kesgrave parkrun is free but you must register in advance on the parkrun website.  100% on grass; the course starts with a 2 lap circumnavigation of the playing field before continuing straight along past a school and houses until the marshal point at Bell Lane is reached; loop back on yourself and continue with the hedgerow on your right to Millennium Field where a short loop into Dobbs Woods will be completed. You will then come back on to field to finish in front of the pavilion. This is a fast and flat course.