The best outing in Santorini are the boat and wine scenic tours. Every tour I have actually handled Santorini has actually been wonderful (or extremely great)-- as well as I've never had a negative experience. It's not absolutely needed to pre-book scenic tours before showing up however if you get on a brief see (less compared to 5 days) it's probably a great idea to book your tour in advancement. From June to September the very best scenic tours could be totally booked weeks beforehand.

Santorini Tours and Things To Do