In September I will be going on a trip to the snow, which from my location takes about 20 hours by bus. It is a school trip, so I will be travelling with about 100 other 16-17 year olds, using 2 or 3 buses.

I myself do not get motion sick, but I am worried about the other people because I know that many of them do get bus sick. What should I do?? I've been panicking about this trip since I signed up for it, and I would have definitely backed out by now if my parents hadn't already paid!

What should I do? I know that chances are people will be sick, but I just don't know what to do! Does anyone have any advice?