Gwynedd offers 207 mapped fishing waters on PiscaMaps, including 85 rivers, 122 stillwaters. Species found across Gwynedd's waters include Brown trout, Sea trout, Grayling, Bullhead, brown trout, Dace, sea trout, Stone loach.
Fishing in Gwynedd is regulated by Natural Resources Wales (NRW). An EA/NRW rod licence is required for all game and coarse fishing in Wales. NRW manages water quality, fish stocks and fish passes across Welsh rivers.
A valid Environment Agency (EA) rod licence is required to fish all rivers, canals and most stillwaters in Gwynedd. Licences are available from gov.uk. Club membership or a day ticket is required on most waters in addition to the rod licence.
Click a river for species information, close season dates, access notes and a location map.
53 species recorded across Gwynedd's rivers, lakes:
| Brown trout | 59 waters |
| Sea trout | 55 waters |
| Grayling | 29 waters |
| Bullhead | 23 waters |
| brown trout | 17 waters |
| Dace | 15 waters |
| sea trout | 15 waters |
| Stone loach | 15 waters |
| Chub | 11 waters |
| grayling | 10 waters |
| Salmon | 9 waters |
| Trout | 8 waters |
Carp are a popular target across Gwynedd's waters — always use a landing net and unhooking mat and return fish promptly.
Barbel fishing is well regarded in Gwynedd's rivers, particularly through summer and autumn when water temperatures are higher.
Brown trout are present in Gwynedd's rivers — many are catch-and-release only and may be subject to game fishing close seasons (typically 1 October to 14 March).
Salmon are present in some of Gwynedd's rivers. A migratory salmonid licence is required in addition to the standard rod licence.
View all rivers, stillwaters and canals across Gwynedd on the interactive map. Filter by species, water type and access.