This was well worth the 30-minute train trip outside of Dublin center! Mark was an amazing host who's love of the Howth area was very evident from the first moments of the hike. He exposed us to areas that I wouldn't necessarily have known about if I went on my own, as well as providing us with great background/historical information. He was very personable with a great sense of humor, and he checked regularly with everyone to make sure we were all doing okay (particularly before, during, and after some of the more challenging parts of the hike). And the cherry on top was having his precious dog, Missy, accompany us - she was such a cute companion! Additionally, an unexpected treat came at the end when Mark and his intern gave us a lovely video of the group hiking at various points on the trail with corresponding animation of the map to show us our progress - what an amazing keepsake!