Lough Mahon
- Saltwater
- Estuary
Lough Mahon
- Saltwater
- Estuary
- Sq. miles
- 4.7
- Boat Ramps
- 0
- Access Points
- 1
- Species
- 5
Lough Mahon is a substantial sea lough, forming the upper, northwestern part of Cork Harbour at the mouth of the River Lee in County Cork. It covers an area of approximately 12 square kilometers. This tidal estuary is characterized by its connection to the River Lee, which flows through Cork city before entering the lough. The water body is a mix of deep shipping channels and shallower areas, transitioning from the urban riverfront to more open estuarine waters. It is a key component of the larger Cork Harbour system, which is a major natural harbor and commercial port.
Species & education
Learn what type of fish are at Lough Mahon and what's needed to catch them.
Fishing spots, boat ramps & amenities
Learn how to get on Lough Mahon. Uncover great fishing access points, boat ramps, and all the facilities you need for an unforgettable day on the water. Some locations shown may border or include private property. Always check property boundaries and applicable regulations before visiting. onWater's Public & Private Land layer can help you plan your access with confidence.
Know where you can legally fish on Lough Mahon
See public and private land boundaries along the water, turn on private parcels with owner details to know where permission is required, and find land-trust parcels that offer permitted fishing access.
Co. Cork licenses and regulations
No licenses or regulations available for Co. Cork.
Take Lough Mahon with you
The onWater Fish app keeps this water's access points, species and conditions in your pocket, with the tools you use once you're there.
Use the map without signal
Download the map around Lough Mahon to use it offline when coverage drops.
Log your catches here
Keep a private fishing journal for Lough Mahon to find where and when fish are biting for you.
Get the onWater Fish app
Free on iOS and Android
Tides, wind & water conditions (10 day forecast)
On open water, wind and tide matter as much as the weather. See the best times to fish Lough Mahon and check the marine forecast before you launch.
Loading tide predictions…
Fishing near Lough Mahon
Explore Cork waters
Top fishing waters
No waters available right now.
Popular Cities
Loading popular cities...
Explore near Lough Mahon
Fishing spots
Nearby waters
More in Co. Cork
Smarter Fishing Starts in the App.
onWater Fish gives you everything you need to plan smarter, fish better, and own every trip from first cast to last.








![Glashaboy [L. Mahon]](https://dkeunmzmwxtjg.cloudfront.net/images/curation/ie-glashaboy-l-mahon-d221e5e0.png)
![Lee [Cork]](https://dkeunmzmwxtjg.cloudfront.net/images/curation/ie-lee-cork-e0010c5c.png)





![Owenboy [Cork]](https://dkeunmzmwxtjg.cloudfront.net/images/curation/ie-owenboy-cork-f1fcd1f0.png)


