Situated 17 miles from Six Bells, Cardiff is a popular stop on most people’s road-trip itineraries. Head here to access Principality Stadium and Cardiff Castle, two excellent attractions to highlight on your map. Still in the mood for a bit of sightseeing? Punch Swansea into your GPS. This attractive destination also features a few top-notch sights like Swansea Beach and Oystermouth Castle, and it’s only 35 miles away.