I saw at tripadvisor site one good tour for Dubai and I booked via 3rd part Viator.Agency in Dubai never showed up for tour,when I called them after waiting for more than 40 min,they said tour is cancelled.I was shocked,because nobody send any mail or sms,nothing.When I wanted to submit review Tripadvisor reject it.I m reviewing many years ago at Tripadvisor,but offcourse this is 1 star review and that s why they didn t want to publish.It s a shame how they protect lyiers and unproffesionals.So don t trust when you read reviews on Tripadvisor any more,I wouldn t.Beacause thry don t want true review.