I’ll be honest, I spent years thinking underwater fishing cameras were just toys for pike anglers or something you’d use when the fishing was slow and you needed entertaining. Then I dropped one in my local chalk stream during a frustrating day when trout kept refusing my dry flies, and everything changed. Watching those browns holding in the current, seeing exactly how they tilted up to inspect my fly before turning away taught me more in an afternoon than a season of guessing.
Gear Used in This Article
For UK fly fishers, an underwater camera isn’t about filming yourself landing fish for social media. It’s about understanding what’s actually happening below the surface when you can’t see it. And trust me, most of the time we’re fishing half blind, making assumptions about where fish are holding and how they’re reacting to our presentations.
The challenge with underwater cameras for our style of fishing is finding something that works in the often murky, tannin-stained waters we deal with. Those crystal-clear American spring creek videos on YouTube are all very well, but try that in a Yorkshire spate river after rain and you’ll see about six inches of brown soup. You need a camera with decent low-light performance and good clarity even when visibility is poor.
I’ve used a few different models over the past couple of seasons, and the ones that work best for fly fishing reconnaissance are the compact, waterproof action cameras rather than the pole-mounted fishfinder types. You want something you can lower into pools and runs without disturbing everything, maybe wedge between rocks to watch a particular lie, or even attach to your wading staff to scout ahead without trudging through holding water.
One setup that’s proved reliable is this underwater fishing camera (https://amzn.to/4dbkzUH) which handles UK conditions pretty well. The battery life is solid enough for a proper session, and it’s survived being bashed against rocks in the Usk more times than I care to admit.
The real revelation comes when you start using one to scout pools before you fish them. I now regularly check my favourite beats on the local river when I arrive, especially after the river’s been up. You’d be amazed how often the gravel’s shifted and fish have moved to completely different lies than where they were last week. Instead of flogging the water where I think they should be, I spend ten minutes with the camera and know exactly where they actually are.
It’s also brilliant for understanding refusals. When fish are rising but ignoring your fly, being able to see what naturals are actually drifting past at depth changes everything. I’ve lost count of the times I’ve been matching a surface hatch while completely missing the nymphs that fish were actually feeding on six inches down.
The other thing nobody tells you is how useful these cameras are for learning new water. When you’re fishing an unfamiliar river, especially our deeper, slower lowland rivers, being able to check structure and depth without putting fish down is invaluable. I’ve found gravel bars, undercut banks and sunken trees that became my best spots for the rest of the season.
There are limitations, obviously. In heavy colour after rain, even the best camera struggles. And you need to be thoughtful about how you use it. Constantly dunking a camera into the water you’re about to fish defeats the purpose. I use mine for reconnaissance at the start of a session or checking water I’m not planning to fish for another hour or two.
The quality of footage you’ll get won’t win any wildlife documentary awards, but that’s not the point. It’s about gathering information that makes you a more effective angler. Understanding fish behaviour, reading water better, and making smarter decisions about fly choice and presentation.
Next time you’re out, try checking that deep pool you always struggle with. Lower a camera in first thing, watch where fish are actually holding, and you might finally crack it. Sometimes the difference between a blank day and a red letter session is just knowing what you’re casting to.

