Ireland in Space Exhibition
A permanent exhibition tracing Ireland's deep connection to the cosmos, from Neolithic monuments that tracked the sun through to Irish scientists at the European Space Agency and the emerging New Space industry.
Blackrock Castle Observatory
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About
A 16th-century castle on the banks of the River Lee that doubles as a working space observatory — part medieval fortress, part cutting-edge science centre, all in one visit.
Things to Do
The Star Show
An interactive guided tour inside a planetarium dome, led by a resident astronomer. Using specialist software, you'll learn to identify stars and planets in the night sky. Shows run about 20 minutes plus 10 minutes for Q&A — and no two shows are ever the same.
Self-Guided Castle Tour
Walk through 400 years of history, from the original fort built to deter pirates in Cork Harbour through to the modern telescope dome on the tower top. Climb the tower for panoramic views over the River Lee and Blackrock.
Alien Worlds Exhibition
Discover the science of exoplanets — planets orbiting distant stars. Learn how astronomers detect these ghostly worlds and how the search for extraterrestrial life is unfolding right now.
Scenic Harbour Walks
The castle is surrounded by greenways and harbour-front paths. After your visit, take a stroll along the River Lee towards Blackrock Village — the Discover Ireland team recommends wearing walking shoes to make the most of it.
BCO Labs & Research Observatory
The castle houses a working research observatory with a 16-inch robotic telescope. Researchers from Munster Technological University use it to search for new planets around distant stars — you can see the equipment and learn about their ongoing work.
Plan Your Visit
- Hours: Monday to Sunday, 10:00–20:00. Last entry at 19:00. (Note: the exhibitions page lists 10:00–18:00 with last entry at 17:00 — seasonal variation may apply; check ahead.)
- Admission: Adult €11, Student/OAP €9, Child (under 5 free) €7, Family (2+2) €32
- Parking: Very limited parking directly outside the front gate — these spaces are primarily for drivers with disabilities. All other visitors should use the large public car park just east of the castle (about 1 minute's walk). Bicycle parking also available on-site.
- Food: The Castle Café, set in the courtyard, serves brunch, lunch, and dinner with a seasonal menu, full bar, and outdoor terrace. Gluten-free and vegan options available. It's independently reviewed as one of Cork's best brunch spots.
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