Killarney

Gap of Dunloe: The Gap of Dunloe is a narrow mountain pass carved by glaciers between the MacGillycuddy's Reeks and Purple Mountain, just outside Killarney, and it's one of the most dramatic short drives — or, better, walks — in Ireland. A single winding road threads through the pass past a chain of small lakes, with rugged mountain walls rising steeply on either side; traditionally, and still today, many visitors do it by pony and trap or on foot rather than by car, since the road is narrow and, in peak season, congested with foot and horse traffic. It's often combined with a boat trip across the Lakes of Killarney to Lord Brandon's Cottage on the far side, making a popular full loop that pairs the mountain scenery of the Gap with the wooded lake scenery of Killarney National Park. It's genuinely one of Kerry's best-known scenic set pieces, and it earns the reputation.

Kerry Cliffs: The Kerry Cliffs, near Portmagee on the Iveragh Peninsula, are among the most dramatic and least crowded cliff viewpoints on the Ring of Kerry — rising over 300 metres above the Atlantic, taller than the more famous Cliffs of Moher, with sweeping views across to the Skellig Islands on a clear day. They sit on private farmland with a small entry fee and paid parking, which keeps visitor numbers far lower than at bigger-name sites, and a short walk from the car park leads to a series of viewing platforms along the clifftop. Because they face the open Atlantic and the Skelligs directly, they're also one of the best places along the Skellig Ring to appreciate just how remote and rugged this stretch of Kerry coastline is, and the walk is short enough to suit almost any visitor pairing a Ring of Kerry drive with a proper look at the ocean.

Killarney National Park was Ireland's first national park, established when the Muckross Estate was donated to the state in 1932, and it remains one of the country's most complete wild landscapes — a sweep of lakes, oak and yew woodland, and mountain scenery including the MacGillycuddy's Reeks, right on the edge of Killarney town. Within its boundaries sit Muckross House, a 19th-century mansion with formal gardens, and Muckross Abbey, an atmospheric Franciscan friary ruin, along with Torc Waterfall and Ross Castle on the lakeshore. The park is also home to Ireland's only remaining native red deer herd, descended from deer present since prehistoric times, and its lakes and woods can be explored on foot, by bike, or by traditional jaunting car (a horse-drawn trap) with a local driver-guide. It's large enough to spend a full day or more exploring without repeating ground, yet accessible enough for a short walk straight from town — a genuinely rare combination of scale and convenience.

Muckross House is a 19th-century Victorian mansion set on the shores of Muckross Lake within Killarney National Park, and it's one of the best-preserved examples of that era's Anglo-Irish country house life you'll find in Ireland. Built in the 1840s for the Herbert family, it hosted Queen Victoria on a famous 1861 visit that reportedly bankrupted the family through the scale of preparations. The house is presented with much of its original furniture and decor intact, and guided tours walk you through both the elegant reception rooms upstairs and the working kitchens, laundry, and servants' quarters below stairs, giving a rounded picture of how the estate actually functioned. Surrounding the house are the formal gardens and the wider Muckross demesne, with mountain and lake views that make the setting feel as memorable as the building itself. The estate was gifted to the Irish state in 1932 and became the seed of Killarney National Park, so a visit here also works as a natural gateway into the park's wider trails, Torc Waterfall, and Muckross Abbey nearby.

Ring of Kerry: The Ring of Kerry is Ireland's most famous scenic drive, a roughly 180-200km loop around the Iveragh Peninsula that strings together dramatic Atlantic coastline, mountain passes, prehistoric ring forts, and small fishing villages. Starting and ending near Killarney, the route typically runs anticlockwise (the direction most tour coaches follow, so independent drivers often go the same way to avoid meeting them on narrow stretches) and takes in highlights like the Gap of Dunloe, Ladies View, Moll's Gap, Skellig Ring detours toward the Skellig Islands, Kenmare, and the beaches around Waterville and Rossbeigh. It's less a single sight than a full day's worth of ever-changing views: one stretch might be sheer cliffs dropping to the sea, the next rolling farmland backed by the MacGillycuddy's Reeks, Ireland's highest mountain range. Because the full loop covers real distance on winding roads, most visitors treat it as a dedicated day trip from Killarney rather than a quick stop, and many break the drive up with short walks, a coffee stop in Kenmare or Caherdaniel, or a detour onto the quieter, arguably even more scenic Skellig Ring.

Ross Castle is a well-restored 15th-century tower house on the edge of Lough Leane, right at the entrance to Killarney National Park, and it was the last stronghold in Munster to fall to Cromwellian forces in 1652 (local legend held it could only be taken by water, which is more or less what happened). Built by the O'Donoghue Ross clan, the castle has been carefully restored with period furnishings across its narrow spiral-staircase floors, and guided tours cover its defensive features, from the murder hole above the entrance to the surprisingly comfortable upper chambers. Beyond the tower house itself, the setting is a big part of the appeal: it sits right on the lakeshore with views across to Innisfallen Island, and it's the departure point for boat trips out onto Lough Leane, including to the ruined monastery on Innisfallen. It works well paired with a walk or cycle through the surrounding national park, or as the start of a lake tour that takes in some of Killarney's quieter scenery away from the road.

St. Mary's Cathedral, Killarney: St. Mary's Cathedral in Killarney is a striking neo-Gothic Roman Catholic cathedral designed by the celebrated Victorian architect Augustus Pugin, whose work also shaped the Houses of Parliament in London. Built mainly in the 1840s-50s with a lengthy pause during the Great Famine (during which the unfinished building reportedly sheltered famine victims), it's constructed of local limestone and topped with a tall spire that's visible across much of Killarney town. Inside, the cathedral is defined by soaring columns, pointed arches, and a spacious, light-filled nave typical of Pugin's Gothic Revival style, and it remains an active parish church rather than a museum piece, so visitors often catch it mid-use for Mass or quiet prayer. It sits directly across from the entrance to Killarney National Park and the grounds of Killarney House, making it an easy, free stop to combine with a walk into the park or a stroll around town.

Torc Waterfall is a 20-metre cascade tumbling down a wooded hillside in Killarney National Park, one of the most accessible and photogenic waterfalls in Kerry. A short, well-maintained path leads from the main road car park up through native oak woodland to a viewing platform at the base of the falls, making it reachable in just a few minutes even for casual visitors, while a longer, steeper set of steps continues up alongside the falls to a viewpoint over the Killarney lakes and mountains for those willing to put in more effort. The water is fed from the Owengarriff River flowing off Torc Mountain and Mangerton, and the surrounding woodland, part of the national park's oak and yew forests, is especially atmospheric after rain when the falls are at their fullest. It's a popular stop along the Ring of Kerry and Muckross road, easy to combine with a visit to nearby Muckross House, and a good example of how much scenery Killarney National Park packs into small, accessible pockets.