Atlantic salmon fly fishing rewards observation, adaptability and restraint far more than brute force. After the presentation I gave at the Guideline Open Day in 2019, several anglers asked me to share the closing points. These are the ten practical lessons I keep returning to on salmon rivers.

1. Observe—and learn to read the water
This is the foundation of fishing: interpreting the environment in front of you. Watch the river, absorb its details and learn as much as possible about the fish. Casting should eventually become instinctive; your full attention should stay on the swing, the speed of the fly and everything the current is telling you. A fly only fishes while it is in the water, so make every second of the presentation count.
2. Feel the current through your tackle
Feel the water through the line, the rod and the cork handle. Become completely familiar with how your outfit loads and how the current works against the line during each swing. Close your eyes occasionally and register those sensations. With experience, you will know when the water in front of you is holding water and whether your line and fly are working at the intended depth and speed. Sight can sometimes mislead you; feel is often more honest.
3. Gather information before you fish
Atlantic salmon are migratory fish, and their willingness to take a fly can be influenced by many variables. River level, water temperature, clarity, weather and recent catches are now easy to check before leaving home. There will always be missing information, but a coffee at the nearest tackle shop, a conversation on the riverbank or a day with a good guide can provide the detail that shapes a successful plan.
4. Fish the near bank and the neck first
One of the most common mistakes is to ignore the first twenty metres. Anglers arrive, wade straight to their waist and make the opening cast with almost the entire shooting head outside the rod tip. In many rivers, salmon travel or hold close to the bank. They can also lie surprisingly high in the neck of a pool. Cover that water before stepping in. Your shortest, quietest cast may be the most important one of the day.

5. Water you cannot reach does not exist
This is the latest addition to my list, and I owe it to Lars Munk, a legend of Baltic salmon fly fishing in Lapland, where huge rivers can be impossible to cover completely with a fly rod. Concentrate on what is within reach. There will be salmon lies and productive taking spots you can fish well. Salmon fishing is intensely psychological: turn away from what drains your confidence and focus on the water that keeps you committed to the next cast.
6. Let a floating line teach you the pool
A floating line is one of the best tools for understanding an unfamiliar pool. Do not rush. Watch how the current controls it, where the belly forms, where the line accelerates and where the swing stalls or behaves unexpectedly. Use that first pass to map the water and decide how to approach a second pass with a denser tip or a sunk line. And while you are learning, remember that the floater may still catch the fish.
7. Be prepared to go against convention
This is especially useful on heavily fished rivers and on pools holding resident salmon that have already seen the same patterns presented at the same angle and speed. Avoid fishing by habit. Change the casting angle, fly size, pace, depth or direction of the swing. Work through the available options with purpose until you find the one detail that makes a fish react.
8. Cover water efficiently
I am not a strict believer in “one cast, one step.” Every pool and every fishing situation has its own rhythm, and the angler must learn to recognise it. But if I had to choose one general strategy, I would rather make three brisk passes through a pool—changing line, tip or fly—than spend the same time on one slow pass. It preserves an element of surprise, disturbs the fish less and lets you cover more water with genuinely different presentations.

9. Do not harass a known fish
A salmon is fully aware of what happens around it. It belongs in that environment; you do not. Surprise and a low profile are among your strongest advantages, and the first time a salmon sees the fly may be your best opportunity. When you know fish are present, it is easy to overfish the lie. Sometimes the better decision is to sit on the bank, take in the river and allow both yourself and the salmon to settle. Your odds may improve while you are doing nothing.
10. Respect river etiquette
Last, but certainly not least: fly fishing has a long tradition of courtesy. Let us keep it that way. Greet other anglers, communicate clearly and learn the local rotation and river etiquette before stepping into a pool. Respect the accepted pace, give people space and treat the river, its salmon and everyone sharing the water with consideration.
The common thread: fish with awareness
Good Atlantic salmon fly fishing is not about making the longest cast or carrying the greatest number of lines. It is about reading the water, presenting the fly with intent and knowing when to change—and when to stop. These ten principles will not remove the uncertainty that makes salmon fishing so compelling, but they will help you make better decisions throughout the day.
Álvaro G. Santillán
Adapted from the closing notes of a presentation delivered at the Guideline Open Day 2019. Discover more of our Atlantic salmon work in Spain.