Every September heritage venues across Wales open their doors to visitors for free as part of Cadw's Open Doors event, and Monmouthshire is no different.
It's a great chance to explore lesser-visited and rarely opened attractions across Monmouthshire.
Explore the ruins of St. Mary's Church in Tintern as part of Cadw's Open Doors Festival. This is a great chance to explore an iconic site in Tintern that doesn't usually offer tours.