If you have 6 hours or a half day to spend in Penrith, there are several things you can do:
1. Visit Penrith Castle - This historic castle ruins from the 14th-century will give you a unique glimpse into the town's history. It will take approximately 1 hour to explore the castle.
2. Go shopping in town - From small independent shops to popular high street stores, Penrith has a range of shopping options to enjoy. Spend a couple of hours exploring the shops and picking up some souvenirs.
3. Have lunch at one of the many cafes or restaurants - Penrith has a variety of cafes and restaurants offering everything from traditional British meals to international cuisine. Take some time out to enjoy a nice lunch or snack.
4. Visit St Andrew's Church - The historic church dates back to the 18th-century and houses beautiful stained glass windows and intricate architecture. It should take approximately 45 minutes to explore the church.
5. Walk or cycle along the River Eden - Take a stroll or cycle along the River Eden and explore the town's beautiful scenery. It is a relaxing activity and can take as little or as much time as you want.
Overall, there are plenty of things to do in Penrith in a half day. You can pick and choose the activities that interest you the most to make the most of your time there.