About Viator 

By matching you with a private guide in your destination of choice, Viator makes it easy to organize the kinds of adventures you've always wanted to do while traveling. The website and the mobile app provide quick and straightforward access to more than 100,000 bookable activities that visitors can browse, read reviews for, and reserve in a matter of minutes. To avoid waiting in long lines or seeing "sold out" signs, vacationers can prearrange their trips or book on the go using the website or mobile app. Discover a place like a local one with the help of a screened guide provided by Viator. Since Trip Advisor owns Viator, the latter can offer its client base access to the latter's exclusive discounts and deals.