Barnard Castle offers a variety of interesting activities and sights for visitors. One of the primary attractions is Barnard Castle itself, a historic fortress that provides insight into the region's medieval history. Exploring the castle ruins allows for a leisurely walk through its grounds, where you can appreciate the surrounding scenic views and learn about its historical significance.

Another notable location is the Bowes Museum, an impressive building housing a diverse collection of fine and decorative arts. The museum often features changing exhibitions, making it a worthwhile stop for those interested in culture and history. The surrounding gardens also present a serene space for relaxation.

For those who enjoy nature, the Teesdale area offers beautiful landscapes and walking trails. The nearby River Tees provides opportunities for leisurely strolls along its banks, as well as activities like fishing or kayaking for the more adventurous.

If you’re interested in local history, a visit to the marketplace is recommended. This vibrant area often hosts local markets, which showcase regional produce and crafts. It’s an excellent way to engage with the community and experience local life.

Finally, St. Mary’s Church, with its stunning architecture and tranquil atmosphere, is worth a visit. The church's historical significance and beautiful stained glass windows can be appreciated by anyone interested in ecclesiastical architecture.

Overall, Barnard Castle offers a blend of history, culture, and natural beauty, making it a pleasant destination for a day trip or a longer stay.