The Marble Arch Caves in the Global Geopark near Enniskellen is a trip into another world.

Steps leading down into caves. A boat ride through part of the cave system. Other-worldly stalactites. 
A set of reflections of stalactites named after the lost city of Atlantis.There is an interesting museum attached.

• More about the Marble Arch Caves and the Geopark around them at their excellent site: https://www.marblearchcavesgeopark.com
• More on our 2015 trip to Ireland.
• More of the Daily Post’s Weekly Photo Challenge: Out of This World.