Born from a deep love for fly fishing, A Mosca Cantabria invites you to slow down and immerse yourself in the thrill of Spain’s untamed rivers. We specialize in uncovering hidden gems across the country—where wild trout dart through mountain streams, elusive giants lurk in plateau waters, and the rare, shimmering reos (sea trout) return from the Cantabrian Sea. Every expedition is crafted to deliver an intimate, expert-led fishing experience.
Explore Legendary Waters: Picos de Europa & Beyond
With over 4,000 km of rivers weaving through Spain’s most dramatic landscapes—including national parks and protected reserves—we know every bend and current. From April to October, chase spirited Atlantic trout and migratory reos in Cantabria, Asturias, and Castilla y León. Discover trophy-worthy stretches south of Picos de Europa, where May to October promises heart-pounding action. We prioritize accessible, client-friendly spots without compromising the wild essence of the adventure.
The Crown Jewels of Spanish Trout

Target all four iconic species:
- Douro Trout – The resilient native of Iberia’s highlands
- Atlantic Trout – Agile fighters of cold, fast-flowing waters
- Mediterranean Trout – Rare and adapted to southern rhythms
- Migratory Sea Trout (Reo) – Silver-scaled giants returning from the ocean
Your Guide: Oscar Quevedo
A decorated angler with 25+ years of dominance, including 7 international titles and 15 years on Spain’s National High Competition Team. Oscar’s expertise transforms trips into masterclasses—whether you’re casting for the first time or chasing record-breaking catches.
Why Choose Us?
✓ Wild trout diversity – All four Spanish species in their natural habitats
✓ Elite guiding – Learn from a champion angler
✓ 4,000+ km of rivers – Pristine, uncrowded waters from mountains to sea
Ready for the Catch of a Lifetime?
A Mosca Cantabria isn’t just about fishing—it’s about connecting with nature’s raw beauty. Book your adventure today and write your own story in Spain’s liquid wilderness.
Expertise You Can Trust:
- Brown Trout
- Sea Trout (Reo)
- Competitive-proven techniques
- Sustainable, respectful practices
Gear up. Cast out. Live the legend.