Hard to get to, far off the very south-western tip of Ireland, this place is an absolute jewel. It's a good 40 mins in a small boat, and the weather is so changeable that you might not be able to go on the day you plan to. But it's really worth getting to, despite the rough seas and the drizzle and cloud. The day we went we couldn't see it when we were a mile away, the cloud was so thick, but the next day we could see it out at see from all around the coast!
It's a steep but not ridiculously arduous climb up a lot of uneven and slippery stone steps with no handrails, so if you're afraid of heights or not steady on your feet, don't go. If you've got sturdy walking boots, wear them.
Landing on the jetty was tough - the seas were really rough. There's a road round from the jetty, and when you reach the bottom of the steps you're welcomed and advised to read the sign (no picnicing, be careful, be respectful). Once you get to the top, you're rewarded with an amazing site - 8th century or earlier stone beehive huts which once housed an isolated community of early Christians.
The highly knowledgeable guide/historian on site answered everyone's questions in depth - it was hard not to monopolise her - but she had stories for the few children there as well as information on early Irish Christianity for the pilgrims and for the rest of us tourists she could tell us about these ancient building techniques, and how they survived in this remote corner on the edge of the world.
The atmosphere is peaceful and surprisingly spiritual. Pilgrims still come here and a mass is held every year for St Michael, so there's a sense of continuity from those early monks to the present day. Well worth doing whatever you can to get there.