Fly Fishing Adventures in Spain’s Untamed Waters

Discover A Mosca Cantabria

Born from a deep passion for fly fishing, A Mosca Cantabria offers immersive experiences in Spain’s most pristine river ecosystems. We specialize in connecting anglers with the natural inhabitants of our waters—from spirited mountain trout to elusive sea-run "reos" of the Cantabrian Sea. Our mission is to provide personalized, expert-guided fishing adventures in breathtaking landscapes.

Explore Legendary Fishing Grounds

Our expeditions span over 4,000 km of rivers and streams across Spain’s iconic national parks and reserves, including:

  • Picos de Europa National Park
  • Cantabrian Mountains
  • The rivers of Cantabria, Asturias, and Castilla y León
  • Guias de Pesca - A Mosca Cantabria

From April to October, these waters teem with wild Atlantic trout and the prized migratory sea trout ("reos"). We reveal hidden gems where trophy catches are possible, ensuring accessible yet thrilling spots tailored to your skill level.

Target Spain’s Wild Trout Species

We specialize in fly fishing for all four native Spanish trout:

  1. Douro Trout
  2. Atlantic Trout
  3. Mediterranean Trout
  4. Migratory Sea Trout ("Reo")

Your Expert Guide: Oscar Quevedo

With 25+ years of competitive fishing and seven international titles, Oscar brings unmatched expertise to your adventure. Highlights of his career include:

  • 15 consecutive years on Spain’s National High Competition Team
  • A decorated record in fly fishing championships
  • In-depth knowledge of Cantabria’s rivers and their seasonal rhythms

Why Choose Us?

Exclusive access to Spain’s finest trout waters
Personalized guidance for all skill levels
Sustainable, respectful fishing practices

Book Your Unforgettable Adventure

Join A Mosca Cantabria for a fly fishing experience that blends skill, nature, and the thrill of the catch. Contact us to explore 4,000 km of rivers, chase legendary trout, and immerse yourself in Spain’s wild beauty.

Fly fish for Spanish wild trout
25+ years of competitive expertise
4,000+ km of rivers at your fingertips


Guias de Pesca – A Mosca Cantabria
Experts in Brown Trout & Sea Trout Fly Fishing