If you only have 6 hours in Armagh, there are several things you can do:
1. Visit the Armagh Observatory and Planetarium - this will take about 2 hours. You can learn about astronomy, see exhibitions and shows, and observe the night sky through telescopes.
2. Explore the Navan Centre and Fort - this will take about 1.5 hours. You can discover the myths and legends of Irish culture, visit an ancient fort, and experience a hands-on workshop.
3. Walk around the city and visit its historical sites, such as the Armagh County Museum, Saint Patrick's Cathedral and the Palace Demesne - this will take around 1.5 hours.
If you have some extra time, you can also:
4. Visit the Richhill Apple Harvest Fayre, which is an annual event in October featuring apple-themed activities and food.
5. Go to Craigavon Mall and Shopping Centre where you can shop and watch movies.
6. Visit Banbridge town, which is known for its elegant architecture, and the Outlet shopping center in Banbridge, which has a wide range of stores selling discounted goods.
Whatever you choose to do, you'll be sure to have a great time exploring all that Armagh and its neighboring areas have to offer.