TripAdvisor has finalised the acquisition of tours and activities online platform Viator.
It is the fourth acquisition this year for TripAdvisor, which is believed to have paid around $200 million for the company.
The other three companies that recently came under the TripAdvisor umbrella are lafourchette, Tripbod, and Vacation Home Rentals.
The Viator website offers 20,000 tours and activities spanning 1,500 destinations and hosts over 600,000 reviews and photos posted by travellers.
TripAdvisor president and CEO Stephen Kaufer, said: "TripAdvisor’s scale combined with Viator’s strong network of global activities and attractions will allow us to help even more travellers planand have the perfect trip.
"Along with the acquisition of online restaurant booking site lafourchette earlier this summer, we’re eager to leverage these powerful booking assets to provide the most comprehensive travel-planning experience for our global community of millions of travellers, both online and via mobile."
