In Estonia, the natives speak Estonian, which is the second most widely spoken Finnic language.
Estonia is a part of the E.U. (European Union), so the euro is the currency used.
I didn't have a chance to look at water prices, but as in many countries in Europe, the tap water is filtered and suitable for drinking!
I went to a restaurant in Tallinn called "Pegasus" which is the sister restaurant of the famous "Ratakaesvu". There, they served us amazing homemade bread that accompanied the main course: roasted chicken breast with a mini-Romaine salad, spicy shimeji mushrooms, pickled radish, and mini-broccoli fried in butter.
On the cruise, they played a lot of Spanish music. Unfortunately, I was unable to get the names of the songs, but they were quite nice.
Aside from exploring the city, I'd say singing and dancing with my friends on the cruise was the most enjoyable part of the week!