An Duanai Mara Charters offers some of the best deep sea fishing in the North Atlantic. The waters surrounding the south west coast of Donegal flourish with over twenty different species of fish. Cod, Ling, Pollack, Mackerel, Coalfish, Haddock, Halibut, Wrasse, Conger, Rays, Blue Shark, and the occasional Porbeagle, are just some of the many species caught.

From rocks to sand banks to ship wrecks, there are many different grounds along the coast to choose from. The Teelin Knowl, known locally as "The Big Fast", is one of the best fishing spots around. This small submerged island, rising sharply off the sea floor, has always been a "go to" spot for the locals. There are also over a dozen ship wrecks in the area, including fishing trawlers, Naval vessels and even Spanish Galleons.