We suggest dressing in layers so you can add and subtract items as temperatures fluctuate and be sure to have comfortable walking shoes. Casual attire is appropriate for all instances with the exception of guests on our Irish Heritage tour who will enjoy a more formal evening at Dromoland Castle. For that event, the dress code is "smart casual" (no jeans, leisure wear, or informal open-toed shoes). For your convenience, we have created a printable packing checklist with our recommendations. Visit www.cietours.com/packing-checklist.