The scene opens with 3 Rhinemaidens swimming in the - oops wrong opera. The scene opens with 3 water nymphs swimming in the river. Rusalka is another water nymph and later gets turned into a human so she can go get married to the Prince. In the second act Cordelia - oh that was last night - the foreign princess mocks Rusalka because she is mute and tries to win over the Prince. This causes the situation that the lead soprano wanders around the stage for most of the second act without singing. Eventually as one would expect in most operas the Prince dies and Rusalka wanders off in misery.
And oh yes, there was a lot of other stuff happening with some very nice music. The set with lots of projected images of woods and ferns and other stuff was great. It was a nice opera and production.
And tomorrow we are hearing Dvořák's String Quartet No 12 - otherwise known as the American at Robert Kapilow's What Makes it Great which are always entertaining and educational.