PENTWATER — Dubbed one of the most beautiful 5K courses in the nation, the COVE Benefit Beach Walk/Run is set for Saturday at Charles Mears State Park at 8:30 a.m. The course covers paved and beach surfaces. Proceeds from the annual event benefit COVE, Communities Overcoming Violent Encounters. Check-in and registration begins at 7:30 a.m.; the 5K/10K run starts at…