After a couple days when we were too tired to blog we reached the lake.
Added comment (August 3, evening): I took the photo on August 3 and uploaded the entry above while riding on the back of the tandem bike. Lake Michigan was splendid, and our route kept us near the lake with frequent opportunities to see it or to stop at beaches.
We hadn't thought that the shorter rides with less gear would wear us out much, but we chose the long rides when available and had the additional back-and-forth trips to our motels, and somehow we fell asleep without managing to upload anything from the ride on the 2nd.
The ride to Lake Michigan was somewhat still hilly, but by the time we rode along the lakeshore, it was quite flat and relaxing: