Innisfallen Island tour, Killarney: 6th-century monastic ruins

Early monastic settlement on a 21-acre island in the center of Lough Leane

This guided boat tour takes you from Ross Castle to Innisfallen Island, a monastic settlement founded in the early 6th century in the middle of Killarney's largest lake. You walk the island's perimeter — about 25 minutes around — past historic ruins, open green areas, and often red and sika deer moving through the site. The tour runs 1 to 1.5 hours total, with a certified skipper as your guide, and you can request extra time on the island if you want to linger.

Step-by-step itinerary

Visit Innisfallen Island and explore ruins

• Boat tour on Lakes of Killarney
• Walk around Innisfallen Island perimeter
• Explore early monastic settlement ruins
• Observe Red and Sika deer

The Experience

The boat leaves from Ross Castle and carries you across Lough Leane to Innisfallen Island, where a certified skipper leads the tour. The island sits 21 acres in the center of the lake, and the walk around its perimeter takes about 25 minutes. You move past the ruins of the monastic settlement — structures that date back to the early 6th century — and through open green spaces where families with young children can move freely. Red and sika deer often appear among the ruins, a detail that tends to catch people's attention.

Mike and Tony Fleming, who run Ross Castle Boat Tours, built the experience around conversation and Irish wit rather than a scripted narration. The boats are Department of Marine Certified and licensed by the National Parks and Wildlife Service. If you want to spend more time on the island than the standard tour allows, you can request it and the skippers will arrange it where possible — useful for couples who want to wander the ruins at their own pace or families who want the kids to run in the open areas without rushing.

What’s included

• Certified guide in English.
• boat transport across Lough Leane to the island.
• access to the monastic ruins and the island's perimeter walk.

Good to know

Easy physical levelStroller friendlyPets welcomePublic transport nearby

Operated by Ross Castle Boat Tours

Is this one for you?The tour runs in English with a skipper who uses conversation and humor rather than a formal script, so it works well for anyone who prefers a relaxed, personal commentary over a structured narration. If you want flexibility on the island itself — time to wander the ruins without a tight schedule — you can request extra time and the skippers will arrange it.

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Top questions

How long is the walk around Innisfallen Island?

The walk around the island's perimeter takes about 25 minutes, moving past the 6th-century monastic ruins and through open green spaces.

Can I spend more time on the island than the standard tour?

Yes — you can request a longer period on Innisfallen Island and the skippers will accommodate it where possible, so you're not locked into a fixed schedule.

What will I see at the monastic settlement?

Innisfallen Island holds one of Ireland's oldest monastic settlements, with historic ruins dating back to the early 6th century scattered across the 21-acre island, often alongside red and sika deer.

Is this tour suitable for young children?

Yes — infants and small children can travel in a pram or stroller, and the island has open green areas where kids can run freely, making it a good fit for families.

Who guides the tour?

A certified skipper leads the tour in English, using humor and Irish wit as part of the experience rather than a formal script.