When you travel somewhere you can do a lot of reading and never find out about guided tours and things to make your trip easier and safer. After having gone on 4 trips and using Viator I'd never not start there now. From finding reasonably priced shuttle service between airport and hotel, and guided sightseeing tours to really understand the area and culture it's a one stop shop. I don't know how they do it, but they choose excellent companies to work with. I've had nothing but excellent experiences with all of the companies they list.
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