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In the Prades Mountains, the terrain leads visitors down through rocky outcrops and dense vegetation. Then, the landscape suddenly opens up to reveal Niu de l’Àliga – a natural pool where water cascades over a low waterfall before collecting among the rocks.
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A natural environment in the Prades Mountains
The Prades Mountains, in inland Tarragona, are home to one of Catalonia’s most attractive natural areas. The Glorieta River valley, in the Alt Camp region, features springs, natural pools and stretches of crystal-clear water that can only be reached on foot.
Although the pool is the main attraction, much of the appeal lies in the scenery along the trail.
How to get to Niu de l'Àliga
There are two main trails to get there:
- From Mont-Ral. This route covers 4.2 kilometres return and includes around 350 metres of elevation gain. Loose rocks are common in some sections, so caution is advised. Parking is available next to the village’s former football ground, which is the usual starting point. From there, follow the signs towards the Pou de Gel de Mas Musté until reaching a steep path that descends to the ruins of an old hydroelectric power station.
- The second option starts from the Mas de Forès recreation area in Alcover: It's a 6.4-kilometre route with less elevation gain, and parking is paid during peak season. The total walking time is between one and a half and two hours, depending on your pace and stops. Although it's not a difficult route, it's advisable to wear appropriate hiking boots and bring plenty of water, as there are no water sources along the way.
The Fonts del Glorieta, the stretch of pools and waterfalls
Along the trail, visitors reach one of the valley’s most attractive spots: the Fonts del Glorieta. This area is made up of springs, small waterfalls and pools scattered along the river.
It is one of the greenest and wettest parts of the valley, where Mediterranean woodland becomes denser and the atmosphere noticeably cooler than in the surrounding mountains.
Remains of the valley’s historic hydraulic infrastructure can still be seen here, integrated into the landscape. Many hikers stop at this point before continuing on to Niu de l’Àliga.
The spectacular pool at the end of the hike
After passing the ruins of the former power station, the path opens up, and Niu de l’Àliga comes into view. Water levels vary throughout the year, but the pool is usually at its best in spring and early summer, when river flow is at its strongest. You will find:
- A waterfall that falls directly into the pool.
- Crystal clear water.
- Shaded rocky areas for resting.
- The Fonts del Glorieta are a short distance away within the same valley.
The combination of rock, water and slope creates one of the most characteristic images in this area.
Why is the water cold even in summer?
One of Niu de l’Àliga’s most distinctive features is the temperature of the water. The Glorieta River rises in the higher reaches of the Prades Mountains and is fed by springs for much of the year, helping to keep the water noticeably cooler than in many other swimming spots during summer.
