Coldwater Cabin is as gorgeous as it's photos. I stayed 3 nights (with a friend) with the intention of just chilling out and enjoying the space and that's exactly what we did. We were lucky enough to have a huge storm come through so we spent a day in our pjs reading on the window seat looking out over the lake and it was heaven.
We did a couple of the short walks (@ 1 hour each) at Lake St Clair as per Jennifer's recommendations and I would highly recommend heading there if you love nature but maybe don't have the time or capacity to do longer walks.
If you are wanting a relaxing getaway, this is your place!