With these food-centric walking tours, you get to sample a variety of tastes — with a little history and sightseeing on the side. If you decide to skip your ship's shore excursions, you can book these tours to experience everything from tapas at the places locals swear by in Barcelona, diving deep into the Rome neighborhood most loved by foodies, or going on an epic tour of Singapore that includes everything from street snacks to chili crab. And since many of these tours are in major embarkation and debarkation cities, you can also get expert recommendations from your guides if you are extending your stay. Check out our picks for 10 great food tours to take in port.