Of all the waterfalls that we encountered between Burgos and Bilbao, Salto del Nervion (or more accurately Salto del Nervión with the accent) by far was the best performer. Not only were we surprised by its flow (as you can see in the photo at the top of this page), but its cliff dive into the head of a picturesque valley further added to its scenic allure. Moreover, the drama of the threatening weather and the gusty conditions also meant that we got to experience the falls in several different moods. In other words, within a span of a few minutes, we managed to see the falls being blown up by the wind, then see a surprise rainbow for the brief moment that the sun came out, and then see the plume of water bend forwards and backwards with the swirling winds on its way down into the valley. We even saw eagles soaring around the falls because there just so happened to be a nest within the spray zone of the falls!

An interesting fact about Salto del Nervion was that apparently its brink was right on the autonomous regional boundaries of Castilla y León and País Vasco (Basque Country). That said, the popular walks were predominantly on the Castilla y León side so most of the signage was purely in Spanish. Another interesting claim about this falls was that it was said to be the highest waterfall in the Iberian Peninsula at 222m. At first glance, this seemed like a dubious claim, but the more we thought about it, the more plausible it seemed, especially if you caveat this by saying it was the highest free-leaping waterfall on the peninsula.

As for experiencing this waterfall, this one made us earn it. Indeed, we had to walk 3.2km in each direction along the PR-BU-42 path (labeled Senda Mirador Salto del Nervión) just to get to the lookout. Fortunately, the walkway was mostly flat as it followed along what seemed like a former gravel road. Given the wide and flat nature of the trail, I also noticed bicyclists taking advantage of the friendly terrain to reduce the time it would otherwise take to walk to the falls. Julie, Tahia, and I also encountered some historical ruins of an 11th or 12th century monastery as well as some interesting statues and interpretive signs along the way. So this was certainly a family-friendly excursion.

From the nearest car park to the Salto del Nervion (see directions below), we walked back along the road towards the junction right in front of the Casa del Parque, which had toilets, interpretive signs, and some rest benches. We then followed the sign for the Senda Mirador Salto del Nervión, and it was pretty much flat and nearly straight walking for almost its entire tree-lined stretch. Just a couple minutes from the start of this trail was the ruins of the 11th or 12th century monastery off the left side of the trail. Nothing really caught my attention after this until there were a couple of statues near a trail junction when the trees started to thin out and the scenery started to open up a bit more.

The trail then curved to the left past some shelter with a resting bench as well as a different trail junction where a rougher path through pastures veered right into the Basque Country side of the regional border. The waterfall path followed along the cliffs to the wide open mirador for Salto del Nervion, which was an overhanging platform with sweeping views down into the valley and town of Orduña (or Urduña) as well as right down at the plunge of the Salto del Nervion. Since I was racing a threatening thunderstorm to get here, it took me about 40 minutes to get here. Eventually, Julie and Tahia would arrive 15 minutes later.

Because it was very windy when we got to the mirador, we saw that the plunging waterfall tended to bend with it. We even saw moments where it seemed like more than half the falls was blown back up over the cliff while the rest of the falls dispersed and “disappeared” as mist before joining the Río Nervión (also known as Ria del Nervión or Ria del Bilbao in the Basque Country) as it made its way through Bilbao and into the Atlantic Ocean. Given the exposed nature of this lookout, we were lucky that we were free of lightning strikes, but the dark clouds were definitely ready to bring weather, and it was only a matter of time.

After we had our fill of the waterfall, Julie and Tahia headed back to the car. Meanwhile, I extended the excursion by going on that rough path branching into the Basque Country from near the shelter. Once I got on there, I could see that this trail used to be a 4wd road probably for ranchers to tend to the horses and cows that I saw still grazing on the land. I’d eventually get off the dirt road and scramble to a faint trail-of-use path that crossed the shallow Río Nervión well upstream from the falls, then ascended to a semi-grassy area with bush clumps spread out that hugged the brink of the cliffs. There were wire fences set along the edges of the cliffs though some parts seemed to have been knocked down.

After about 15 minutes, I finally got to an alternate view where I was able to look straight down into the valley with the Salto del Nervion framing the left side. I didn’t have time to keep walking along the cliffs for different angles of the panorama. And I did recall seeing in the literature that one could scramble all the way to the opposite side of the gorge for a direct view of the plunge of Salto del Nervion. Certainly, I could’ve spent a lot more time here, but we still had a long drive to San Sebastián ahead of us, and I still had to walk back to the car park where Julie and Tahia would surely be waiting for me.

All in all, Julie and Tahia spent over 100 minutes away from the trail. I wound up spending about 2 hours away from the car, which included the extended side excursion to one of the alternate views of Salto del Nervion and the valley together. On the way back, the storm eventually produced some on-and-off rain so it was a good thing that we came prepared with a rain poncho (though its effectiveness was limited around the mirador when the wind tended to do a Marilyn Monroe and blow it upwards.