Panta de Cavallers: a steep paved road to the reservoir

Pantà de Cavallers is a stunning high mountain reservoir perched at 1,770m (5,807ft) in the Lleida province of Catalonia, Spain. This gem sits in the northeastern part of the country, nestled in the beautiful Boi valley within the Aiguestortes i Estany of Saint Maurici National Park. The reservoir was built back in 1958, and there's a small parking area right at the dam.

Getting here is definitely an adventure. The road—also called Estanys de Tor—is the L-500, and while it's fully paved, don't let that fool you. It's seriously narrow—so tight that two average cars literally cannot pass each other. You'll be navigating through endless curves and hairpin turns, so honest warning: reversing skills are pretty much essential. If you're not comfortable backing up on a mountain road, this isn't the drive for you.

Starting from Caldes de Boí, you're looking at a 4.6 km (2.85 miles) climb with 7 hairpin turns to tackle. You'll gain 299 meters in elevation, averaging a 6.5% gradient with some sections hitting 10%. The good news? The road stays open year-round, though winter weather can occasionally force temporary closures. Pick a good weather day, take your time through those curves, and you'll be rewarded with an unforgettable mountain experience.