Road trip guide: conquering Lake Gruebu

# Grüebusee: Switzerland's Hidden Alpine Gem

Tucked away in the Valais region of southern Switzerland, near the Italian border, sits the stunning Grüebusee—a pristine alpine lake perched at a breathtaking 2,862 meters (9,389 feet). The name itself tells a story: in Swiss German, "Grüebu" derives from "Grube," meaning "pit" or "hollow," so you're basically visiting a lake nestled in nature's own depression. Pretty cool, right?

Ready for an adventure? The 13.9-kilometer (8.6-mile) drive from Saas-Balen to the lake via Heimischgarten is definitely not your typical Sunday cruise. Starting at the bridge over the Vispa, you'll gain a serious 1,336 meters of elevation with an average gradient of 9.61%—and that's just the average. The steepest sections hit a punishing 20%.

Here's the real deal: only the first four kilometers are paved. After that, buckle up for a wild ride featuring 26 hairpin turns on a narrow, unpaved track. Loose gravel, cramped passages, and steep drop-offs make this one a true test of driving skill. This route is strictly 4x4 with high clearance only—no exceptions.

One of Switzerland's highest roads, Grüebusee is a serious mountain challenge. Plan your visit carefully though: the road is typically closed from October through June, weather permitting. Time your trip right, and you'll be rewarded with some of the most jaw-dropping alpine scenery imaginable.