Normandy chalk stream with rich character — clear, spring-fed, home to wild brown trout and grayling that have had generations to become sophisticated. Selective water demanding small, precise presentations. Classic mayfly, olive, and sedge hatches (April–June best). Grayling winter fishing effective. Stable temperature from chalk geology. Some beats private; public access available. Check AAPPMA.
In chalk-spring and karst trout systems, generally stable temperatures broaden olive and other mayfly activity from early spring into autumn, with strong evening caddis, steady subsurface scuds and buzzers where clear groundwater and weedbeds develop, and terrestrials from meadow and woodland banks rounding out the food calendar, depending on how fast each river drops and clears after rain.
- Chalk