What happens if it rains on the day of our Death Road trip?

Rain does not stop the tour from going ahead unless it was so bad that the guides considered it to be too dangerous - we have not known this to happen ever. You are provided with wet weather gear (jacket and trousers) plus goggles so rain and mud don't get in your eyes. If things get muddy of course that can slow things down but it does not stop the trip from going ahead. You cannot decide to cancel on the day because you don't want to get wet, sorry - that would mean you loose 100% of your payment!