Karate Marsh Barton Trading Estate, Exeter - Welcome to the Marsh Barton Trading Estate Karate Directory listing recommended karate clubs in Marsh Barton Trading Estate. It lists those who offer karate lessons and karate in Marsh Barton Trading Estate, Exeter. Do you have a Marsh Barton Trading Estate business? If so, why not advertise it on the Marsh Barton Trading Estate Business Directory - IT'S FREE.