A main hazard for many men and some women is wiping out from not watching where you're going. A little hilly but nice. Skated to France a couple different ways. Hot-shot skaters down by the lake. A little scary in places.
Streets are decent.
Fair number of bladers around. Nice past midnight skate from Georgetown to the Mall, past the White House and various major edifices. Re-enacted my act of peeing on the Capitol lawn at the age of 10. Only place I've been physically threatened. Easy to get turned around.