The Potomac River slices through Washington, DC, its waters daring you to glimpse the city from a fresh vantage point. On this 6-hour guided tour, visitors exchange the solid ground of the National Mall for a dynamic journey that threads together the city’s historic monuments and vibrant waterfront. Starting near the National Archives, the tour bus hums to life, taking you past grand federal buildings and verdant memorials before you step aboard the seasonal Potomac riverboat at Georgetown or Washington Harbor. The river pushes forward, offering an unhurried panorama of the capital’s skyline, punctuated by whispers of history and flags fluttering in the breezes.