Saturday, September 23: Ka`u Coffee Trail Run 5K, 10K & Half Marathon.  Invite your family and friends to join you or cheer you on as you set out to meet your goal in the family-friendly 5K run/walk, take the challenge of the 10K or test your endurance in the 13.1 mile climb up to 3,100 feet. Set your stride as you run through fields of coffee and macadamia nuts and forests of eucalyptus and `ohi`a trees, and cherish the breathtaking…