I know, I know, this isn't in Northeast, but we'll just say that I happened to "stumble upon it." The lake is a great place to go for a walk/run/bike ride. From great concerts to movies in the park, (along with wine and apps) you'll be sure to find a perfect end to the evening. So many people are just out and about, from painters, guitar players and so much more! Lake Harriet sure does add to the thriving diverse Uptown atmosphere.
If you haven't found this gem yourself, I recommend a saturday evening stroll, or a great date night! It sure is a beauty.