Thanks for taking the time to write the review. In the description of the tour it is specified that the tour may undergo changes due to volcanic activity and the weather. The rules governing the ascent to the top can change even from week to week but despite this we warn customers in time to give them the opportunity to cancel the tour if they want, perhaps also for this and for the high quality standard that we try to keep during the excursions we have a very high average reviews. We advanced by 30m only because in the afternoon there was the possibility of cloud cover, one of our driving tasks is also to adapt our trips according to the weather conditions in order to guarantee the best conditions for our customers. I wish you a good day
Marco