Our walk with guide Marco was excellent. He had a lot of knowledge on history and the city, and took us from Roman times to present-day.
He was good at involving our kids and keeping them interested. He was very conscious on everyone’s safety and physical conditions as well, pacing the tour appropriately.
You’re given a headset with an earpiece to better hear the guide which helps alot.
Be prepared for a 2-hour 2-kilometer tour around the wall, moving up and down stairs. Bring water, sunscreen and a hat. There are a few places along the wall that do have toilets but best to hit the toilet before you start..
Amazing views of the city and surrounding area, I definitely recommend it.