When I was in Seattle I saw that almost everywhere we go there is water either a view of the ocean or a lake while driving. It would be really nice to have your own boat and explore these. Also observed that people here love the outdoors. They seem more relaxed than the big city.
Lake Washington is a ribbon lake, which are long, narrow and finger-like. Ribbon lakes were formed thousands of years ago during the ice age through glaciation: as the glacier bulldozed through a valley (glacial trough), it met bands of harder and softer rock. more info from Wikipedia
After having some ice cream early in the afternoon we decided to go Kayaking at Lake Washington. And of course we need to get back to M and L's apartment to put on sunblock and borrow some extra clothes.