Getting to the island of Santorini is not as simple especially if it's your first time to Greece. There are a couple of ways to do it and each one has their own nuances and “need to knows”.
Now if you're wondering whether Santorini is worth it or not, that's a whole other thing but let's break down how it works, where you can get tickets, and what you need to be aware of.
Piraeus port - This is a large industrialized port and primary hub for ferries in Athens.Rafina port - Has fewer options being a much smaller local port.