Take the A13 south toward Flims; though it’s known as one of the best ski destinations in Switzerland from November to March, the spring is just as spectacular. At Lake Cauma Park, hike the pine-studded path to the funicular, which drops you down at Lake Cauma, where you can catch a paddleboat tour or simply take in the view. Back at the top, head south and stop in tiny Uors for an early dinner at Casa da Luzi (Surcasti; 41-81/931-2459; dinner for two $107), where Swiss chef Beat Reinmann serves whatever’s fresh that day. After dinner, it’s only seven miles south to the Modernist spa hotel Therme Vals (Vals; 41-81/926-8080; therme-vals.ch; bath for two $85), designed by Peter Zumthor. End your day with a soak at the hotel’s legendary hot springs.