Is there a lot of walking?

That is entirely up to you. A tour can be designed to fit your activity level.  I always suggest walking as much as your feet will allow in order to maintain your weight while on vacation as well as build up an appetite between each stop.   You can decide to grab a taxi or take public transportation at any time and it is usually easier (and cheaper) that driving from place to place yourself.

What to bring?

Depends on the destination and the time of year.  I always suggest wearing comfortable shoes.  There is nothing worse than dealing with a blister early into your day.  Carry a backpack with you with water, sunscreen, band-aids, aspirin, hand sanitizer, tissue, hat, jacket/sweater, and a camera.  Again, depending on where you are and the time of year, it may be wise to carry a poncho or umbrella with you.  Don’t forget your wallet!

What will I be eating?

Again, this is entirely up to you and all depends on what you are looking to get out of your tour.  Choose to eat your way through a city with a variety of cuisine to has to offer or be your own judge on the best pizza in town.

How long is a typical tour?

As long as you want it to be!  Don’t forget, you are on vacation and should enjoy yourself.  Take your time to see the sights while moving from one eatery to another or rest your feet while enjoying a nice cocktail.