Read more9/11 Tribute: Potomac River Swim to Honor Veterans, Encourage Open Water Events09 September 2022Potomac River Swim to Honor Veterans, Encourage Open Water Events On Sept. 11, 2022, JP Vanderloo, a senior at Loudoun County High School and leader in their NJROTC program, will participate in a 20.5-mile marathon swim along the Potomac River as it winds through DC. The course will start slightly n...