I am totally fine taking a taxi or exploring by foot, I am on a cruise and our port is 1-10:00 PM at Santorini, but one of the friends that is coming with me is very heartset on renting donkeys for our excursion. I think it's because she has never ridden one before (we are from the US) and is excited about that. I have read reports on their abuse in staying in the sun too long and not being rested, and I would not be ok in spending my money for that treatment of any animal. Does anyone have personal experience or any advice for exploring Santorini? I would really like to show her some evidence if this is true since the information I have found so far is limited so I would like to verify this... :) Thanks!