You are looking for a tablock box
This cache is located near the Shannon-Erne-Waterway. From the bridge you have a nice view along the canal to Lough Scur. If you like you can upload a picture taken from this view. It would be interesting to see how different and unique every shot is...
For boat people: The cache is NOT reachable from the water - the nearest pier is about 2,5 km away: Keshcarrigan Marina.
Please be careful! You are beside a road and so there can be some traffic!
Good Hunting!