Do not use this company. I booked with them based on two things: 1) Their promise of 24/7 service 2) Their promise of free cancellations up to 24 hours before the experience. Both of these things are not true - the service was non existent and they’ve refused to return my money, without justification. I initially asked for help in moving a booking whilst on holiday. No one was available to do this at Viator - they just have me a phone number of the operator in the city I was staying in, even though I had told them this phone number was not working (the operator admitted that his phone was broken). I ended up having to go myself to the operator across town (spending money on Uber rides) to change it directly. When this time didn’t work, I gave Viator significantly more than 24 hours notice and they have repeatedly refused to return my money, with no explanation and summarising the event in a completely factually incorrect way. I will be warning as many people as possible to go with other companies instead. PS it’s worth noting that most of the positive reviews about this company are not actually about Viator - they’re about the companies that they make bookings for. Viator doesn’t run the experiences - it’s just a booking agent which promises 24/7 service and free 24 hour cancellations that it simply does not provide.