Fish and Duck Marina sits at the confluence of the Rivers Great Ouse, Cam, and Old West at Popes Corner, Holt Fen, roughly four miles south of Ely and ten miles north of Cambridge.

The rural setting offers panoramic views of Ely Cathedral and the surrounding Fenlands.

The marina accommodates cruisers, narrowboats, wide-beam boats, and barges, and provides access to over 200 miles of navigable Cambridgeshire waterways, much of it lock-free.

Three cruising routes lead directly from the site: along the Old West toward Earith, up the Great Ouse through Ely toward Denver, and along the River Cam toward Cambridge. Boat sales, moorings, and day-hire boats are available on site.