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Fishing Basics
Reading Water
Fish hold in predictable places — learn to spot them before you cast.
Beginner
By William Blacklock · Last updated April 2026
When to use this
Before you make a single cast — spend 5 minutes reading the water from the bank.
- Stream or river fishing where fish position varies with current
- Teaching beginners where to cast instead of letting them blanket the water randomly
- Improving catch rates without better gear
What you need
- Polarized sunglasses (removes surface glare so you can see structure underwater)
- Your existing rod setup
Step by step
- 1.Understand the rule: fish want food with minimal effort. They position where current brings food to them without requiring them to fight the flow.
- 2.Riffles: shallow, fast, broken water over gravel. Fish here to feed aggressively, especially in low-light. Productive for trout with surface presentations.
- 3.Pool: deep, slow, calm water below a riffle. Fish rest here to conserve energy. Larger fish hold in pools. Fish the edges and the seam between fast and slow water.
- 4.Eddy: a reverse current behind a rock or bend. The circulating water collects food. Drop your bait or lure into the eddy behind any mid-stream rock.
- 5.Seam: the boundary between fast water and slow water. Fish position on the slow side facing the fast side — all the food drifts by without the effort of holding in the current.
- 6.Structure: anything that interrupts the current — boulders, undercut banks, fallen trees, bridge pilings. Fish use structure for shade, ambush, and current breaks. Cast tight to structure.
Pro tips
- Polarized glasses are the single most important fishing tool for stream fishing. Without them you're fishing blind; with them you can often see the fish before you cast.
- Fish the transition zones — riffle-to-pool seams, shade-to-sun lines, and the edge of any weed bed. Fish rarely hold in the middle of the obvious feature.
Common mistakes
- Wading in immediately and casting. You spook fish in the shallows before you get to the productive water.
- Casting to the middle of a pool instead of the edges and seams. The middle of a pool is rest territory — fish face into the current at the head of the pool.
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