Loved it! This was the best way to see London for the first time and the tour bus was clean and comfortable and the tour guide was funny and knowledgeable. We had a great time and you can't beat the price. Highly recommended.

The guide we had was very knowledge and was very clear in his delivery. His timing was excellent and he took us round at a very comfortable pace. would have liked to linger in the gardens but realise that this was not possible as time was of the essence. We shall be back so that we can visit the gardens again. Hope to stay in the Parador next time. The one concern we did have was that it was not accessible to anyone in a wheelchair. There probably should be a warning to this effect. Fantastic experience!!!!!

We found the l'Open buses frequent and easy to use. They stopped at all the main sights we wanted to visit and others we hadn't known about too. Only slight criticism is of the earphone system - some commentary was during the getting on and off the bus process, which meant you missed some of it. The Batobus river trips were an added bonus. All in all the tickets proved excellent value for money and an important part of our 4-night stay.

An experience not to be missed. Was fun and informative. Got to see much of the island that other tourists dont see and overall a great day!

Extremely good value. The pre-paid vouchers were easily exchanged for tickets on the bus. The four hop-on-hop-off routes made sure we saw as much of Paris as possible. The Batobus on the Seine was an added bonus.