We met Mark from the Dalriada Kingdom Tours during a walking tour of the Giant Causeway, organized by a coach company. Dalriada Kingdom Tours is a family run company and Mark is the owner. He was a great tour guide and took his time showing us all the details of this natural wonder. He was friendly, knowledgeable, passionate about his job, and a great storyteller. This was simply the best way to see the Giant Causeway! I would be happy to go back to Northern Ireland and have another tour guided by Mark. read more