I don't find the 120 asked by the Raffles Hotel too bad, considering how much they are prepared to charge to stay there. I have only done the site four times and it was a while ago, and the first time was through the hotel. When I did it on my own I think I paid $40 each for the passes, the fifty for the guide and the car must have cost me 20 or $30. Each day the guidewould only allowed the young ones a couple of hours, then we were back to the hotel for a swim, something to eat then after a snooze we were back out there again.Our guide did the raiders of the ark game and the kids just lapped it up. You can do it very cheaply in a tuk tuk, but i always work on the basis I have come all this way, I might as well do it properly The good part about Raffles Sofitel or de la Paix is if it goes belly up you cross it off your account