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Inishowen Maritime Museum & Planetarium is located at the Old Coast Guard station over looking Greencastle Harbour on the banks of the beautiful Lough Foyle. It is situated beside the Lough Foyle ferry entrance; this passenger / car ferry service runs between Greencastle and Magilligan, Co. Derry.

Summer Opening Hours
June – August
Monday to Saturday 10am - 5.30pm
Sunday 12pm - 5.30pm
Closed Mondays
(except Bank Holidays)
(Last Admissions – 4pm)


Winter Opening Hours
Monday to Friday 10:30am - 4pm
(Last Admissions – 3:30pm)

The museum features a well-stocked gift shop where you can browse items ranging from nautical toys through exquisite model ships to reproductions of antique brass compasses and other navigator’s tools.

The Coffee Dock is closed during winter. Opening hours Monday to Friday from 10.30am – 3.30pm in summer.
Our coffee dock offers a great range of tasty traybakes and cakes, homemade scones and a full selection of coffees, teas and cold drinks! Outdoor seating and takeaway available. Only 100 yards from the Lough Foyle Ferry.

Inishowen Maritime Museum and Planetarium
Greencastle: 074 93 81363