Cerro Las Campanas: Driving to the giant telescopes of the Atacama

Deep in Chile's Atacama Desert, perched at 2,380m (7,810ft), sits Cerro Las Campanas – home to one of the world's top spots for stargazing, the Las Campanas Observatory!

The adventure starts off Ruta 5 (the Pan-American Highway), somewhere between Vallenar and La Serena. From there, it's a 39.6 km (24.6 mile) journey snaking through the stark, stunning Atacama landscape. Think vast, empty desert dotted with more telescopes than people. The observatory is a modern marvel, but the road getting there? Pure, unadulterated desert solitude.

The road's a bit of a mixed bag – some paved sections, some not. It's generally kept in decent shape for those huge telescope components, but expect some dusty, gravelly patches. Oh, and it's steep! You'll climb a hefty 1,325 meters. The real kicker? "Camanchaca" – thick, dense fog rolling in from the Pacific, slashing visibility and making those steep drop-offs seriously hairy.

Don't underestimate the weather. At that altitude, it's intense! Wild winds whip across the ridges year-round, and winter temps are brutal. Even summer can bring surprise snowstorms. The road can shut down at any moment thanks to snow or ice. If it’s snowy or stormy, seriously reconsider driving. Slick roads + steep slopes = a bad combo in the middle of nowhere.

The summit is a scientific wonderland, packed with optical and solar telescopes, including the famous Magellan telescopes. It's a working observatory, so there are basic amenities for the staff, but be aware of traffic. Big service vehicles use this narrow road, and it can be tough to hear them coming. Pick your lines wisely and use those low gears on the way down – that 3.34% average gradient can really test your brakes!