Children of all ages are invited to Fredericksburg Thurs., June 21, to participate in the World’s Largest Swim Lesson at the Hill Country Memorial Wellness Center (1006 S. State Hwy. 16). The lesson is free, and children are required to register to participate. Registration begins at 12:30 p.m., and the lesson begins at 1:30 p.m. Certified swim instructors from the HCM Wellness Center will lead the 30-minute swim and water safety lesson. The World’s Largest Swim Lesson was created i ...