Mont-Saint-Michel Abbey, a UNESCO World Heritage site, is a historic Benedictine abbey perched atop a tidal island. Accessibility can be challenging due to the island's natural terrain, involving steep climbs and numerous steps; however, shuttle buses are available to reach the base of the mount. A solo visit allows for exploration at your own pace, but guided tours provide deeper historical context. The abbey is open year-round, but tidal conditions and weather can impact access, especially during high tides and storms. Expect to spend approximately 2-4 hours exploring the abbey and surrounding village. Entry tickets cost around €11-€18. Consider booking tickets in advance to avoid queues, especially during peak season. The island is very crowded during peak season.