Topped by the ruined, medieval Chapel of St Michael, the iconic hump of Glastonbury Tor is visible for miles around, and provides Somerset with one of its most unmistakable landmarks. It takes half an hour to walk up from the start of the trail on Well House Lane; the steepest sections are stepped. Between April and September a regular Tor Bus (adult/child £3/1.50) shuttles from St Dunstan's car park near Glastonbury Abbey to the trailhead on Well House Lane; alternatively, it's a 20-minute walk.

The tor is the focal point for a wealth of local lore. According to Celtic legend, the tor is the home of Arawn or Gwyn ap Nudd, king of the underworld and lord of the faeries. A more famous legend identifies the tor as the mythic Isle of Avalon, where King Arthur was taken after being mortally wounded in battle, and where Britain's 'once and future king' sleeps until his country calls again. Others believe that the Tor marks an ancient mystical node where invisible lines of energy, known as ley lines, converge.

It's easy to see why the tor has inspired so many myths. It's a strange presence in an otherwise pan-flat landscape, and in ancient times (when the area around Glastonbury was covered by water for much of the year), the Tor would indeed have appeared as an island, wreathed in mists and cut off by rivers, marshes and bogs.