Exercising in water provides 12 times the resistance of working out on land. If you feel the level of resistance is not sufficient, you can add a few items of specialized water aerobics equipment to your routine, such as water weights, webbed gloves or ankle cuffs.
Old Town Trolley Tours. Monuments, memorials, museums, picturesque scenery and magnificent architecture are abundant in Washington DC, and for visitors, Old Town Trolley Tours offers the best way to see it all. Washington DC has so many important points of interest that for most travelers there is just so much to see and do.
5. The Mall in Washington DC is the most crowded on the 4th of July, Memorial Day weekend, during the National Cherry Blossom Festival and for major political rallies and special events. See a guide to National Mall Events in Washington DC. The best way to avoid crowds is to visit on weekdays and early in the day. See also 3 Ways to Avoid Crowds in Washington DC.