Sécure
When Everything Turned On
We began the penultimate week of our 2026 season at Sécure lodge under low-water conditions and unusually high temperatures, both during the day and at night.
As humidity continued to build, the week reached a clear turning point. Midway through the trip, persistent wind, intermittent rain, and a sharp change in atmospheric pressure triggered an extraordinary increase in activity across the system.
Dorado, pacú, and yatorana seemed to switch on almost simultaneously.
What followed became one of the most spectacular fishing days of the season, the kind of day that could almost fill an entire Fishing Report on its own.
In the Maniquicito, Bill landed a large pacú on a delicate grasshopper imitation. Robert and Bill completed an extraordinary double Grand Slam in the same crystalline tributary. Far upstream on the Sécure, Steve -on his second trip to Tsimane- and Jeff found repeated dorado action, while Steve came painfully close to landing an enormous pacú.
One day. Three river environments. More highlights than most weeks manage to produce.
6 Steve, Jeff, Robert & Bill (United States); Alex & Marcela (Switzerland). Steve and Alex are returning guests.
Week 17 split almost perfectly into two different halves. The first three days were hot and sunny, with unusually warm temperatures continuing well into the nights.
Then conditions shifted. Cloud cover settled in, temperatures eased slightly, and midway through the week we encountered persistent wind and intermittent rain. That atmospheric change marked the beginning of one of the most intense periods of fish activity we experienced all season.
Despite the isolated rainfall, the rivers themselves remained remarkably stable. Water levels stayed low and exceptionally clear throughout the week in the Sécure, Ashahana, and Maniquicito.
The intermittent rain never altered that clarity, leaving anglers with demanding but highly visual fishing across all three environments.
Catch of the Week
A Big Pacú on a Small Fly in a Tiny Creek
Some catches become memorable because of
size.
Others because every element of the situation
seems almost contradictory.
In the intimate waters of the Maniquicito, Bill presented a delicate grasshopper imitation to a large pacú.
A substantial fish.
A small surface fly.
And a creek whose scale seems almost impossible
for a fish of that size.
The pacú ate.
That combination of fish, fly, and setting made it one of the most distinctive catches of the week and a perfect example of what makes fishing these tributaries so unusual.
Memorable Moments
The Day Everything Turned On
Exactly as the second half of the week began, persistent wind and a dramatic shift in atmospheric pressure triggered intense activity throughout the system.
The Upper Sécure, Ashahana, and Maniquicito all came alive at once.
The result was a single day containing more standout moments than almost any other day of the season.
A Double Grand Slam in Maniquicito
Fishing the crystal-clear waters of the Maniquicito, Robert and Bill produced something exceptional.
Both completed a Grand Slam of dorado, pacú, and yatorana.
A double Grand Slam in a tributary of this scale would already be remarkable.
Doing it in low, transparent water, where every approach and presentation is exposed, made the achievement even more significant.
The Dorado That Found the Wood
In Ashahana, Alex connected with a large dorado.
The fish immediately used the environment to its advantage, running straight toward submerged timber.
The wood won.
The fish broke free, leaving behind one of those encounters measured not by a photograph, but by how quickly everyone understood just how large the opportunity had been.
The Pacú That Nearly Took the Rod
Far upstream on the Sécure, Steve and Jeff landed a strong number of dorado during an exceptionally productive session.
Then Steve connected with an enormous pacú.
The fish exploded away with such force that it broke the fly line as though it were a fine 5X leader.
The break sent the rod tip flying after it, nearly adding another piece of equipment to the river along with the fish.
No pacú came to hand.
The story certainly did.
The Week at Sécure
Low, crystal-clear water had demanded precision all week.
Then one atmospheric shift changed the rhythm completely.
A large pacú on a hopper, a double Grand Slam, repeated dorado action, a big fish lost to submerged timber, and another pacú powerful enough to break a fly line all converged into one extraordinary stretch of fishing.
With only one week remaining in Sécure’s 2026 season, Week 17 delivered one of its most concentrated displays of what these rivers can produce.
Fernando, Guides & Staff
Sécure Lodge, 2026
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