Moorland spate river where you might catch a trout on a Snipe & Purple in the morning and a sea trout at dusk — versatility is the game. Fast response (4 hours) and broken water suit darker flies and bolder presentation than chalk streams. The water often carries peat stain after rain — fish darker spiders and bigger wets when conditions darken. Salmon and sea trout run April–October; brown trout throughout. Flexible access via local ticketing (Danby, Egton Bridge, Ruswarp) — contact ahead for best options. The Esk Fishery Association controls roughly eight miles of named beats including Lealholm, Glaisdale, Limber Hill and Sleights; membership has a joining fee, an annual subscription and (for adults) a waiting list. Visitor day tickets are available only on a limited stretch via boat hire at Ruswarp. Sandstone freestone bedrock underlies this river. Atlantic salmon are assessed by the Environment Agency against each river's Conservation Limit — many principal rivers are classed 'at risk' with mandatory catch-and-release byelaws; check current rules before fishing.
- Sandstone