The primary target is the elusive Sea-Run Brown Trout, averaging 8lbs and reaching up to 30lbs. These moody fish require precise presentations, as they can be unpredictable. The Río Grande, a manageable river, allows for a variety of techniques. One moment, trout may take a fly deep, and the next, they’ll rise to a skating fly. With easy wading and changing water levels, adaptability is key. Adjust your presentation, and trust your expert guide to help you land more fish. Sea-run browns often lie near cut banks during the day, moving into faster waters during early morning and evening hours.

Fish Species:

• Sea-Run Brown Trout (Seatrout): The star attraction of the Río Grande, these powerful and aggressive fish can grow to impressive sizes, ranging up to 10+ kg, providing an exhilarating challenge for anglers.
• Resident Brown Trout: While the sea-run variety is the main draw, resident brown trout also populate these waters, adding to the diversity and excitement of the fishing experience.

Best Seasons:

• January to April: This period marks the prime season for fly fishing on the Río Grande. During these months, sea-run brown trout return from the ocean to the river to spawn, making them highly active and aggressive. Anglers can expect thrilling catches and remarkable fights with these formidable fish.
• Late Season (March to April): The late season is particularly noted for the presence of larger, more challenging sea-run brown trout, providing an opportunity for anglers to land trophy-sized fish.
  
  

A great rule of thumb is “tails in the morning and heads at night.” On calm, overcast days, fish can be found throughout the pools, while sunny days may require adjusting your approach to avoid the trout’s direct line of sight to the sun. However, success often depends on the number of fish in a pool and their willingness to bite.