Hike the Cliff Path Loop

Starting from the Dart train station in town, follow the green arrows along the promenade that lines the harbour. These arrows are on lamp posts, fairly small, along with other colored arrows for other trails. It can be difficult to first spot them, but if you follow along the harbour, in a meadow there is a large map detailing the different trails on the peninsula. There is also a stand with brochures and maps of the area. 

Once you spot the arrows, it's fairly easy to follow along the path. Just make sure you follow the green* arrows, because you'll end up on some other trail. At first, it doesn't seem like your typical hiking trail. It's pretty much a walk on the promenade between harbor and town, but eventually, towards the end of the town, you'll reach a dirt trail that'll take you along the cliffs.

Before the trail turns unpaved, there are little beaches and areas you can stop at. There's a particular beach right where the cliffs start. At the bottom of the cliffs are small caves that you can get to. Warning, though, to get to the caves you have to walk along huge stones and boulders covered in slippery moss and sea grass. 

Once on the unpaved trail, you'll be walking along cliffs for pretty much the rest of the way. Towards the end, it'll turn back into paved roads in a small neighborhood. Just follow the green arrows on the road until you reach downtown Howth again.

At the end of the hike, go for some fish and chips at any of the restaurants and some gelato from Amore artisan gelato. You could also get one of the famous and popular 99 cent cones (not really 99 cents... more like 2 euro) at Teddy's ice cream shop. Lay back on the grass anywhere in town or sit at the pier to enjoy your food.