Carrick-a-Rede Rope Bridge
For me, the best part was the scenery. Views along the hike to the bridge as well as from the island itself are incredible. Most people don't just cross the bridge and go back, they spend time exploring the island and taking photos of the natural beauty around them.
Giant's Causeway
TIP: Bring your good camera, good walking / climbing shoes and art supplies if you are a creative type - the imagery is so inspiring!
Bushmills Distillery
I've been on a distillery tour before, but it was a couple of years back so I was happy to go through the tour to be re-educated. Our tour guide was enthusiastic and knowledgeable and made the 40-minute tour fly by. I wasn't allowed to take photos, but we saw the rooms where the different stages of creating the whiskey take place from mashing to bottling. Then, we were led into the tasting room (aka the best part). I tried the 10-year single malt which I really liked and the distillery reserve which I didn't like - it wasn't smooth enough for me.