We had the Monuments and Memorials Tour that departed at 6PM. Originally we wanted to book for the Cherry Blossom Tour but it was sold out. It turned out it was actually the better choice during this season as the streets were not so busy after 6 while we saw another segway tour group struggling to find the way among so many pedestrians the next day during day time. The guide (Iain) taught us how to ride the segway patiently and was very knowledgeable about DC history. The itinerary and schedule were also very friendly with enough time for us to take selfies at those cannot-miss spots. Though you could bring a big camera, a point & shoot one is recommended since I found it not that easy to maneuver the segway using one hand. The overall experience was great. Highly recommended.