If you find yourself with extra time in the area, check out the below:
Donegal is famous for world class golf.
Ballyliffin Golf Club - Has hosted the Irish Open and includes two championship links golf courses - https://www.ballyliffingolfclub.com/
Buncrana Golf Club - The oldest 9-hole links course in Ireland https://buncranagolfclub.ie/
Experience the highlights of Derry~Londonderry, Europe's last fully walled city, by walking the historic 17th-century ramparts, crossing the iconic Peace Bridge, and diving into "Troubles" history through Bogside murals and the Tower Museum.
A bit further out, but worth it for a UNESCO World Heritage Site - https://www.nationaltrust.org.uk/visit/northern-ireland/giants-causeway
Malin Head is the most northerly point of Ireland and is famous for its dramatic landscapes and beautiful beaches - https://www.discoverireland.ie/donegal/malin-head
The Wild Atlantic Way is the longest defined coastal route in the world stretching 1,500 miles from Malin Head in Co. Donegal to Kinsale in Co. Cork. A chance to explore some of Donegal’s hidden treasures - https://www.govisitdonegal.com/explore-donegal/wild-atlantic-way
Enjoy the sandy Buncrana Beach, Lisfannon Beach (Blue Flag), or the quieter Porthaw Beach. Take the scenic coastal path from Ned's Point Fort to Porthaw.
Explore a 14th-century fortified tower house and former stronghold of the Ó Dochartaigh clan