This past weekend I saw a guy in a rented Thunderbird pontoon go on the wrong side of the buoys at the east end entrance of the Brule Narrows. A number of boats were stopping to inform/help but he just kept going. Not sure if he lost his lower unit or not.
Just remember when heading east (toward Kettle Falls) the red buoys should be on the right (red-right return). Many people think Rainy flows from West to East. It *does not*, it flows East to West.
Otherwise, there are some really nice houseboat sites on the east end. If you can find one with coverage from west and north winds you’ll be mostly protected from winds and waves.