When gamefish are keyed on sand eels, nothing else will do. These thin, silvery baits present a needle-like silhouette, and fish locked onto them refuse anything with too much bulk. Sand eel flies, from the classic sparse Ray's Fly to modern epoxy versions, all share one trait: a long, thin, sparse profile that matches the sand lance exactly.
What it imitates
The whole design brief is thin. A sand eel is a slim, elongated baitfish, so the fly is sparse and skinny, often with a slightly weighted or epoxy head to give it a diving, darting action like a real sand eel burrowing and fleeing.
How to fish it
Fish it on an intermediate or sinking line with a steady strip or a strip-and-dart retrieve. Around sandy flats, shoals and open beaches where sand eels live, work it near the bottom for bass, or up high and fast for albies crashing them on top.
Tip Keep it sparse. The single most common mistake is tying or buying a sand eel fly that is too fat, when fish are on the real thing, thinner beats fuller every time. If in doubt, trim it down.
Sizes and colors
Simple and natural, olive, tan or gray over white with a little flash, in a length that matches the sand eels present (they can range from a couple of inches to quite long). The profile matters far more than the color.