Ultimate Guide to Killarney National Park: Mountains, Lakes, Castles & Top Attractions
Killarney, Ireland
Nestled in Ireland's County Kerry, Killarney boasts rolling hills, ancient castles, pristine lakes, and the stunning Killarney National Park. Discover the best things to do in this emerald gem.
Having visited Ireland multiple times, Killarney National Park (Páirc Náisiúnta Chill Airne in Irish) and its surroundings rank among my top experiences, rivaling Dublin and the Cliffs of Moher.
Picture lush green fields and charming villages—that's Killarney. Home to some of Ireland's finest natural wonders, the town overlooks Lough Leane in southwest County Kerry and serves as a gateway to the iconic Ring of Kerry drive.
Whether seeking Irish culture in Killarney Town or outdoor adventures in the national park, this area delivers. Here's a curated list of the top things to do in Killarney, Ireland.
Top 12 Things to Do in Killarney
Table Of Contents- Top 12 Things to Do in Killarney
- 1. Visit Killarney National Park
- 2. The Muckross House
- 3. Explore Ross Castle
- 4. Old Weir Bridge
- 5. Red Deer Spotting
- 6. Visit Killarney’s Pretty Lakes
- 7. Carrauntoohil & The Macgillycuddy Reeks
- 8. Check Out Torc Waterfall
- 9. St Mary’s Cathedral
- 10. Castlelough Castle (McCarthy Mor)
- 11. Walk The Gap Of Dunloe
- 12. Driving The Ring Of Kerry
- Where To Stay In Killarney
- Where To Eat In Killarney
- Getting Around Killarney
- Killarney Travel Tips and Advice
1. Visit Killarney National Park
Killarney National Park features mossy valleys, ancient woodlands, majestic mountain ranges, historic castles, serene lakes, and cascading waterfalls.
Established in 1932 as Ireland's first national park with the donation of the Muckross Estate, it now spans 25,000 acres.
Nature enthusiasts can wander diverse forests, including oak and yew woodlands around the Lakes of Killarney.
Entry to the park is free, though some attractions charge fees. Many highlights below are within the park, with others nearby.
2. The Muckross House
Situated near Muckross Lake, Muckross House is a Victorian mansion built in 1843 for Henry Arthur Herbert and his wife, watercolorist Mary Balfour Herbert.
Acquired by Lord Ardilaun of the Guinness family in 1899, visitors can tour the house, gardens, and working farms year-round. Elegant period furnishings evoke the era's opulence.
Ivy-clad stone walls shift hues with the seasons, complemented by manicured gardens. The grounds include three working farms, Muckross Abbey ruins (with a tree growing through the center), traditional farmhouses, a Labourer’s Cottage, Carpenter’s Workshop, and Blacksmith’s Forge.
Opening Times:
Typically 9am – 6pm (check current schedules)
Entry Fee:
House tours: €9. Grounds free.
3. Explore Ross Castle
Perched on Lower Lake's edge in Killarney National Park, this restored 15th-century tower house was built by the O'Donoghue Mór clan around 1537 and has witnessed centuries of conflict.
Guided tours available in summer. Boat trips from Ross and Reen piers visit Innisfallen Island and Lord Brandon’s Cottage.
Legend claims the castle's founder haunts the lake, circling on a white horse every seven years on May 1st—spot him for lifelong luck!
Opening Times:
Seasonal: e.g., March to October, 9:30am – 5:45pm (verify current hours)
Entry Fee:
Free entry; guided tours €5.
4. Old Weir Bridge
Amid Ireland's ancient ruins, Old Weir Bridge is a 16th-century stone arch where Killarney's three lakes converge.
Access by boat, bike, or foot. Park at N71, walk to Dinis Cottage for coffee, then follow the path to the bridge.
5. Red Deer Spotting
Spot Ireland's largest wild mammal, the red deer (Europe's second-largest), in Killarney National Park. Males weigh up to 240kg with impressive antlers.
Visible year-round; spring for fawns, autumn for the rutting season's dramatic clashes.
Prime spots: Knockreer Estate near St. Mary’s Cathedral and Muckross House. Listen for eerie calls and roars.
6. Visit Killarney’s Pretty Lakes
Surrounded by woodlands and mountains, Killarney's lakes—Lough Leane (Lower), Muckross (Middle), and Upper—are perfect for wildlife viewing and outdoor pursuits.
- Lough Leane: Largest lake; boat to Innisfallen Island's 6th-century abbey ruins. Ross Castle nearby.
- Muckross Lake: Hike the 3-5 hour Muckross Lake Loop; detour to 18m Torc Waterfall.
- Upper Lake: Smallest; prime fishing for salmon and trout.
Opt for boat or kayak tours.
7. Carrauntoohil & The Macgillycuddy Reeks
Hike Ireland's highest peak, Carrauntoohil (1,038m), in the Macgillycuddy’s Reeks. Options range from moderate to challenging.
The demanding Coomloughra Horseshoe (6-8 hours) summits Beenkeragh, Carrauntoohil, and Caher.
Weather can turn treacherous—prepare accordingly.
8. Check Out Torc Waterfall
A 20m cascade from the Owengarriff River, Torc Waterfall is an easy 5-minute walk—family-friendly.
Extend with Torc Mountain Trail (2 hours, panoramic views), Huntsman’s Hill (3.5km loop), or Torc Loop (40 minutes).
9. St Mary’s Cathedral
A short walk from Killarney's shops, this Gothic Revival cathedral boasts intricate stonework and stained glass.
Augustus Welby Pugin's design, started in 1842, completed in 1907 after famine delays. Exceptional acoustics enhance services.
10. Castlelough Castle (McCarthy Mor)
Overlooking Lough Leane, this 12th/13th-century Anglo-Norman castle fell to the MacCarthys in 1262, held until the 18th century.
Adjacent to Lake Hotel and Castlelough Restaurant amid stunning scenery.
11. Walk The Gap Of Dunloe
This glacial pass, over 25,000 years old, divides the Reeks and Purple Mountains. Named Dún Lóich after legendary chieftain Mac Lóich.
Walk, bike, or jaunting cart the 5-mile round trip from Kate Kearney’s Cottage through farms, lakes, and peaks.
12. Driving The Ring Of Kerry
Start from Killarney for this scenic 179km coastal loop (counter-clockwise). Highlights: Killorglin, Ballycarbery Castle, Leacanabuaile Forts, Ladies View, Moll’s Gap, Derrynane Beach, Skellig Ring, Kerry Cliffs.
Where To Stay In Killarney
Killarney offers options from hostels to luxury hotels.
BEST HOTELS IN KILLARNEY
Budget
Railway Hostel
Midrange
Killarney Dromhall
Luxury
Aghadoe Heights
BEST AIRBNBS IN KILLARNEY
Budget
Kerryway Guesthouse
Midrange
Chapel Place
Luxury
Betty’s Cottage
Where To Eat In Killarney
Murphy’s Of Killarney
Enjoy a pint amid live music and locals. Traditional fare: shepherd's pie, Guinness beef stew, fish and chips.
Bricin
Named for 'small trout' and a nearby bridge, this High Street spot in a historic building offers cozy dining with local crafts.
Getting Around Killarney
Rental Car
Book via Discover Cars for the best deals across providers. Ideal for flexibility and remote spots.
Killarney Shuttle Bus
Hop-on-hop-off to national park highlights.
Taxi
Available but limited.
Jaunting Carts
Iconic horse-drawn tours through the park.
Killarney Travel Tips and Advice
- Summers average 10-16°C (50-60°F); rain possible year-round. Peak season is busiest.
- Reach via train/car from Dublin, Galway, Cork; Kerry Airport 13km away.
