Estany Negre (Sant Nicolau)

Estany Negre is one of the most striking glacial lakes in the Aigüestortes i Estany de Sant Maurici National Park, sitting at 2,296 metres above sea level near the village of Espot in the Catalan Pyrenees.

How do you get to Estany Negre?

The trail starts in Espot and follows an old path that coincides with the marked GR11-20 route. The one-way hike takes roughly three and a half hours, climbing through the Peguera valley — first through forest, then across increasingly steep, high-mountain terrain. The steepest sections come right at the start and near the end, so plan for a full day out with enough water and daylight for the return. Along the way you pass the Josep M. Blanc refuge, a popular rest stop and overnight base for hikers tackling longer routes through the park's eastern sector.

What will you see at the lake?

Estany Negre lies in a rocky basin known as coma dels Pescadors, ringed by granite peaks typical of this stretch of the Pyrenees. The lake covers 4.27 hectares, measures 319 metres long and 183 metres wide, and reaches a depth of 36 metres — making it one of the deepest bodies of water in the entire park. The dark, almost black water — which gives the lake its name (negre means "black" in Catalan) — stands out against the pale granite bedrock and the jagged ridgelines that mirror on its surface on still days. It's a spot favored by seasoned mountain hikers who value silence and raw high-altitude scenery, away from the busier trails around Estany de Sant Maurici.

When is the best time to visit?

The ideal window for hiking to Estany Negre runs from June to October, when the trail is clear of snow and the steep sections remain safe to cross. Early in summer, patches of snow can still linger in shaded parts of the valley, so it's worth checking current conditions with the park office before setting out. In autumn, the Peguera valley turns golden and foot traffic drops noticeably, making for a quieter walk.

Frequently Asked Questions

How long does it take to reach Estany Negre from Espot? The one-way hike takes about three and a half hours, mostly through the Peguera valley, with steep stretches at the start and end of the route.

Is there anywhere to stay overnight near the lake? The Josep M. Blanc refuge sits along the way and serves as a base for longer treks through this part of the park.

Why is the lake called "Black"? The name comes from the dark color of the water, a result of the lake's depth and the dark granite rock surrounding it.

Is the trail difficult? It's rated as moderate overall, but includes steep sections, especially on the climb and descent, so good fitness and proper footwear are recommended.