If you are in this area you can explore Chur city in one day by foot. You could start with the old town including landmarks like the cathedral of Saint Mary, built during the 4th century, also you can take a stroll along the Rhine Riverand explore the local shops and cafes or a museum. If you have more time you could hike up for stunning panoramic views of the city and beautiful surrounding landscape. Of course you can extend your trip with a few days.
Have a great Weekend!