Ireland: The Emerald Isle — Why Ireland Is So Green

Why Ireland is the Emerald Isle

• Term first appeared 1795: William Drennan poem “When Erin First Rose” — “Emerald Isle” referring to Ireland.
• Atlantic climate: Ireland sits in the path of moisture-laden westerly winds + Gulf Stream warm current. 150-200 rainy days/year. Mild temperatures.
• Rainfall: 750-1,500mm annually (Dublin 730mm, west coast 1,500mm+).
• Mild temperatures: rarely below 0°C or above 25°C. 5-15°C typical. No extremes — keeps grass green year-round.
• Soil: rich limestone + glacial deposits + peat. Excellent for grass.
• Low pollution: small population (5.3M) + low industry + Atlantic winds clean air.
• 4 million sheep: grazing keeps grass vibrant green. Plus 7M cattle.
• “40 shades of green”: phrase popularized by Johnny Cash 1959 song after Irish visit. Different greens at different times of year + locations.
• Few trees historically: 1% forest cover by 1900 (down from 80% pre-Norman). Now 11% — among lowest in EU. Open landscape = green vistas.

Wild Atlantic Way

• 2,500 km of coastal road: world’s longest defined coastal driving route. Donegal in north to Kinsale in south.
• 15 “Signature Discovery Points”: standout views.
• Northern section (Donegal): Slieve League cliffs (601m — highest sea cliffs in EU), Glenveagh National Park, Malin Head (Ireland’s northernmost).
• Sligo: WB Yeats country. Ben Bulben mountain.
• Mayo: Achill Island (largest Irish island), Croagh Patrick pilgrimage.
• Galway: base for Connemara + Aran Islands. Galway city itself charming.
• Co. Clare: Cliffs of Moher (214m), Burren limestone landscape, Doolin (trad music capital).
• Co. Kerry: Dingle Peninsula, Ring of Kerry, Killarney, Skellig Michael (UNESCO Star Wars filming).
• Cork: Mizen Head Atlantic cliffs, Bantry Bay, Kinsale (foodie town).
• Drive timing: 14 days minimum to do justice. 21 days ideal. Don’t rush.
• Resources: wildatlanticway.com official.

Ring of Kerry

• 179 km scenic loop: through Killarney National Park + Iveragh Peninsula.
• Drive time: 4-6 hours full loop. Allow full day with stops.
• Killarney: base town. Killarney National Park (UNESCO biosphere reserve), Muckross House.
• Top stops counterclockwise: Killorglin → Glenbeigh → Cahersiveen → Waterville (Charlie Chaplin’s holiday spot) → Caherdaniel → Sneem → Kenmare → Killarney.
• Skellig Michael UNESCO: 6th-c. monastic island. Star Wars filming. Boat from Portmagee April-September. Limited permits.
• Gap of Dunloe: mountain pass through Killarney. Hike or pony cart.
• Lakes of Killarney: Lough Leane, Muckross Lake, Upper Lake. Boat tours.
• Torc Waterfall: short walk in Killarney NP. Stunning.
• Ladies View: classic Ring of Kerry viewpoint.
• Best time: April-October. Spring rhododendrons. Autumn colors stunning.

Cliffs of Moher + Burren

• Cliffs of Moher (Co. Clare): 214m vertical Atlantic cliffs. 14 km long. Most-visited natural attraction Ireland (1.5M visitors/year).
• Visitor Centre: €13 entry includes car parking. Path access free outside Centre.
• O’Brien’s Tower: highest point. €4 access.
• Best time visit: sunrise or sunset. Avoid midday crowds. Coach tour buses 11am-3pm worst.
• Boat tours: Doolin Cliff Walk + Boat Tour. View from sea level.
• Burren: 250 km² limestone karst landscape. Looks like moonscape but contains rare wildflowers (Mediterranean + Arctic species side-by-side).
• Burren orchids: 23 native orchid species. Best May-June bloom.
• Poulnabrone Dolmen: 5,800-year-old portal tomb. Free.
• Doolin: trad music capital — McGann’s, McDermott’s, Gus O’Connor’s. 3 famous pubs in tiny village.
• Aran Islands: Inishmore, Inishmaan, Inisheer. Ferry from Doolin or Galway. Stone forts + Irish-speaking.

Connemara + Wicklow

• Connemara (Galway): wild bog landscape + 12 Bens (Twelve Pins) mountains. Connemara National Park.
• Kylemore Abbey: 1867 Victorian castle on lake. Benedictine nuns. Walled Victorian garden. €15.
• Diamond Hill: 442m peak. 3-hour hike with 360° views.
• Letterfrack: Connemara village base.
• Connemara ponies: native breed. Wild + tame populations.
• Wicklow Mountains National Park: just south of Dublin. Glendalough (6th-c. monastic settlement, 2 lakes), Sally Gap, Lough Tay (Guinness Lake — black water + white sand).
• Glendalough: “valley of two lakes.” St. Kevin’s monastic ruins from 6th c. Round Tower 30m. Free.
• Wicklow Way: 131 km long-distance hike from Dublin to Clonegal.
• Powerscourt Estate: 18th-c. mansion + gardens. Powerscourt Waterfall (highest in Ireland 121m). €13.

Northern Ireland Causeway

• Giant’s Causeway: UNESCO 1986. 40,000 basalt columns from volcanic activity 50-60M years ago. Free outdoor (visitor centre paid).
• Causeway Coastal Route: 120-mile drive Belfast-Londonderry. Voted one of world’s best drives.
• Carrick-a-Rede Rope Bridge: 30m above Atlantic. 20m bridge. £8.
• Bushmills Distillery: oldest licensed whiskey distillery world (1608). Tours £12.
• Dunluce Castle: dramatic clifftop ruins. £6.50.
• Game of Thrones filming locations: 25+ across Northern Ireland.
• Belfast: Titanic Quarter (built here 1912), Crumlin Road Gaol, Belfast Mural Tours.
• Derry/Londonderry: walled city (only intact city walls in Britain or Ireland). Bogside murals.
• Currency: NI uses GBP — different from Republic Euro. Same passport (Common Travel Area).

Best emerald experience

• Walking + hiking: Wicklow Way (131 km), Wild Atlantic Way Coast Path sections, Slieve Bloom Trail.
• Cycling: Greenway routes. Great Western Greenway (42 km). Waterford Greenway (46 km).
• Pubs in countryside: Sean’s Bar (Athlone — oldest pub in world 900 AD), country crossroads pubs.
• Trad music sessions: Doolin (Co. Clare), Westport (Co. Mayo), Dingle (Co. Kerry), Gleann Cholm Cille (Donegal).
• Castle stays: Ashford Castle, Dromoland Castle, Ballynahinch Castle. Luxury heritage.
• Distilleries: Jameson Cork, Kilbeggan, Slane Castle, Dingle.
• Photography: rural roads with stone walls + sheep + green hills. Iconic Irish landscape.
• Equine experiences: Connemara pony trekking. Beach rides Achill Island.
• Sea fishing: Atlantic charters from Cork + Kerry + Mayo.

Practical info

• Getting there: Dublin (DUB), Cork (ORK), Shannon (SNN), Belfast (BFS) airports. Ferries from UK + France.
• Driving: left side. Country roads narrow, single-lane in west. Patient driving.
• Currency: Republic Euro. Northern Ireland GBP.
• Best time: April-October. May-June + September best (mild + fewer crowds). Peak July-August.
• Weather: notoriously variable. Sun + rain + sun all in one hour. ALWAYS bring waterproofs + layers.
• 40 shades of green: peak vibrancy April-July after spring rains. Autumn September-October orange + gold.
• Visa: Republic outside Schengen but visa-free for most. Common Travel Area with UK.
• Languages: English. Irish Gaelic (Gaeilge) co-official ~70K speakers in Gaeltacht regions.
• Days needed: 7 minimum (Dublin + Cliffs of Moher + Ring of Kerry). 14 for Wild Atlantic Way. 21 for full island.
• Tipping: 10-15% restaurants. Round up taxis.

Frequently Asked Questions

Why is Ireland called the Emerald Isle?

Coined 1795 by poet William Drennan. Ireland is exceptionally green due to: Atlantic climate (Gulf Stream + westerly winds), 150-200 rainy days/year, mild temperatures (5-15°C), rich limestone soils, 4M sheep grazing, low pollution. ‘Forty Shades of Green’ Johnny Cash song 1959.

Best Irish scenic drive?

Wild Atlantic Way (2,500 km — world’s longest defined coastal route, Donegal to Cork). Or Ring of Kerry (179 km loop in Killarney NP, 4-6h drive). Or Causeway Coastal Route (Belfast-Derry NI, 120 miles).

How long for Ireland?

7 days minimum (Dublin + Cliffs of Moher + Ring of Kerry). 14 days for Wild Atlantic Way. 21 days for full island including Northern Ireland Causeway. Don’t rush — Ireland rewards slow travel.

Is Ireland really that green?

Yes — exceptionally vibrant green due to Atlantic moisture + mild temps + grazing animals. Peak vibrancy April-July after spring rains. Fall September-October orange + gold. Winter still green (rarely snow).

Best time visit Ireland?

May-June + September-October ideal — mild, longer days, fewer crowds. July-August peak summer (warmest but most tourists). Spring blooms April-May. Autumn colors September-October. Winter mild but short days.

Cliffs of Moher worth visit?

Yes — 214m vertical Atlantic cliffs, Ireland’s most-visited natural attraction (1.5M/year). Best at sunrise/sunset to avoid coach buses 11am-3pm. €13 visitor centre. Combine with Burren limestone landscape + Doolin trad music.

See also

• Irish culture