What did Spartans drink?

I'm curious to know, what exactly did Spartans, the renowned warriors of ancient Greece, consume to quench their thirst? Were they partial to water from a particular source, or did they have a unique beverage that fueled their strength and endurance on the battlefield? Did they have access to any fermented drinks, and if so, were they consumed for pleasure or for other purposes? I'm eager to learn more about the drinking habits of these legendary fighters.