Evening/Group Admission

Group Rates

A group rate of €5.50 per person is offered to groups of 10 or more during public opening hours. Tickets should be booked and purchased in advance; please contact the Castle.

Private Evening Tours

The exhibit is open by special arrangement for groups of 10 or more after hours. Prices are as follows:

  • 10-15 Visitors: €150
  • 16-25 Visitors: €200
  • 26-40 Visitors: €300
  • 41+ Visitors: €400

This price includes a visit to Cosmos at the Castle and a ‘behind the scenes’ guided tour of the Telescope Tower and down to the Gunnery, a National Monument.


Guided Stargazing can also be added to bookings for evening groups of 15-25 people at a cost of €50 per group. Please note this is weather dependent and is offered at night, between September and March.