There is no need to arrive before the scheduled time of your tour. We have allotted time for check in and training into our schedule. If you want to be a few minutes early, that's fine. But we cannot stress how important it is not to be late. There are most likely going to be other people on your tour who have arrived on time. And there will definitely be other groups after your tour. Once a group shows up late, it creates a cascading effect leaving the rest of the tours for the tour guide on that day to be running late. For example: If you have booked a 2-hour tour scheduled for 9:00AM, you should arrive at 9:00AM. Check-in and training typically runs for half an hour (30 minutes) from 9:00AM until 9:30AM. Then you will spend 2 hours on the tour and be back at 11:30AM.