About an hour and a half drive from Boise are the Bruneau Sand Dunes. An amazingly awesome place that just doesn't seem "Idaho".
There are no signs saying anything about dogs so we do let them run off leash. We've never had any problems. It is pure doggy paradise.
This past year my vet was doing a routine exam on Rye and heard a heart murmur for the first time. It's a grade I for now. We also xrayed his heart so we'd have something to compare it to later and it was very slightly enlarged. So far we haven't noticed any symptoms of heart disease and my vet said I didn't have to restrict his exercise, which makes us all very happy! Rye ran straight up that dune and let me tell you, I was breathing pretty hard just walking up it...
"I will follow you anywhere, Dad"
What makes the dunes even better is the reservoir in the middle of them. This was a few weeks ago and it was pretty cold and windy so Amber did not go for a swim.