
Walk Through Ancient Seas & Wild Patagonia
Discover a truly unforgettable half-day adventure in Puerto Guadal — where dramatic landscapes, rich biodiversity, and deep geological history come together. This iconic fossil trek is more than just a hike; it’s a journey across changing terrains and through millions of years of Earth’s story, offering breathtaking views and rare discoveries at every step.
This half-day fossil trek from Puerto Guadal begins with a short 25-minute drive to the trailhead, where your adventure into Patagonia’s diverse landscapes starts. The first stretch takes you through serene lenga forests, offering shade and a chance to spot local flora and fauna. As you continue, the scenery opens into wide grasslands before gradually ascending above the tree line into a striking, barren terrain reminiscent of a Martian landscape.
From this elevated vantage point, enjoy breathtaking 360° panoramic views of the Northern Patagonian Ice Field, the vast blue expanse of General Carrera Lake, and the untouched Patagonian wilderness stretching in every direction.
The highlight of the trek is an extraordinary fossil site, where you’ll explore remnants of a 20-million-year-old seabed. The area boasts an impressive density of fossils, with more than 60 identified marine species — a fascinating experience even for those with no prior interest in paleontol
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