Ross Island

Overview

Ross Island forms a narrow peninsula extending into Lough Leane, the largest of the Killarney Lakes. Though called an island, it is connected to the mainland by a thin strip of land and is easily reached on foot from Ross Castle. As part of Killarney National Park, the landscape is carefully preserved, with well-signposted paths winding through oak woodlands and along the water’s edge. From the trails, you get clear views of the Mangerton and Torc Mountains to the south, with the Purple, Tomies and Shehy ranges framing the western horizon.

Ancient Copper Mines & History

The island’s most remarkable feature is its network of Bronze-Age copper mines. Archaeological surveys date mining activity here to around 2400 BC, making them some of the oldest metal-working sites in Ireland. Open shafts and stone-built structures are scattered across the terrain, particularly along the main walking routes. The mines were worked intermittently for centuries, supplying copper for local craftsmanship and wider trade networks.

The area’s mineral wealth was noted as early as the 9th century by the Welsh monk Nennius, who described Lough Leane as being surrounded by concentric rings of tin, lead, iron and copper. Later, the O’Donoghue Mór clan built Ross Castle at the island’s southern tip in the 15th century to control lake traffic. A local prophecy claimed the fortress could not fall “till on Lough Lein strange ship shall sail.” The prophecy came true during the Confederate Wars when Oliver Cromwell’s forces sailed an artillery ship up the River Laune to breach the defences. Today, the castle grounds remain free to explore, while guided interior tours run from March to October.

Walking Trails

The island is crisscrossed with three main trails, all of which can be walked individually or linked together for a longer route.

Copper Mines Loop

This 2 km circular walk starts at the foot of Ross Castle and follows the shoreline past the historic mine shafts before returning through the castle grounds. The route is largely flat and takes 30 to 45 minutes. Interpretive panels along the way explain early mining techniques and the role of copper in prehistoric Ireland.

Governors Rock Trail

A 2 km out-and-back path leads to a limestone cliff that drops sharply toward the lake. The viewpoint offers an unobstructed panorama of Lough Leane, the island’s rocky shoreline, and the distant mountain ranges. It’s a popular stop for photographers and can easily be combined with the Copper Mines Loop.

Library Point Trail

Located at the northern tip of the peninsula, Library Point is the furthest point from the castle but remains a short walk away. The path narrows slightly as it follows the water’s edge, offering quiet lakeside scenery and a good spot to pause. A small loop around the headland adds a little extra distance for those who want it.

Knockreer & Ross Loop

For visitors looking for a longer challenge, the 10 km Knockreer & Ross Loop starts at the Knockreer Estate car park, follows the Lower Lake shoreline, incorporates the Copper Mines Loop, and climbs gently to Knockreer House before returning to Ross Castle. Rated easy to moderate, it typically takes two and a half to three hours and passes through mixed woodland, wetland habitats and open parkland.

Wildlife & Nature

The varied habitats around Ross Island support a steady presence of wildlife. Red deer are frequently spotted grazing in the surrounding woodlands, while the lakeshore attracts mute swans, kingfishers and occasional ospreys. The re-introduced white-tailed eagles are also known to pass through during spring and summer. Anglers can fish for brown trout from the shore near the castle, provided they hold a valid licence.

Practical Information

• Parking: A free car park sits adjacent to Ross Castle and fills quickly during peak summer months. An additional free car park is available at the Knockreer Estate for those starting the longer loop.
• Access & Cost: The walking trails are free and open year-round. Ross Castle interior tours run from March to October, with tickets priced at €5 for adults, €4 for seniors/groups, €3 for children/students and €13 for a family.
• Footwear & Weather: Paths are well-maintained but can become muddy after rain. Sturdy walking shoes are recommended, especially for the uneven sections near Governors Rock.
• Dogs: Dogs are welcome on all trails but must be kept on a leash.
• Accessibility: The Copper Mines Loop and Library Point sections are largely flat and suitable for wheelchairs. A short set of stone steps near Governors Rock may present a barrier for those requiring full step-free access.
• Facilities: Toilets and a small café are located at the Ross Castle visitor centre. Picnic tables are available near Library Point.

Boat Tours & Nearby Islands

Reen Pier, a two-minute walk from the castle, is the departure point for several lake-cruise operators. One-hour sightseeing trips glide past Ross Island, offering a water-level perspective of the copper mines and limestone cliffs. From the same pier, you can take a short boat ride to Innisfallen Island, home to a 6th-century monastic site, or visit Ahamore Abbey on Abbey Island. For a more remote island experience, the Blasket Islands are accessible via seasonal ferry services from nearby Dingle.

Trail Summary

Ross Island packs a surprising amount of history and natural scenery into a compact, easily navigable landscape. Arrive early in the morning to secure parking, follow the Copper Mines Loop at a relaxed pace, and you’ll have plenty of time to watch the lake traffic and spot deer in the surrounding woodlands.