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Ireland's Gate to Hell Inspires Halloween Lore
30 Oct
Summary
- A new 13km walking trail offers access to Rathcroghan, an ancient royal site.
- Rathcroghan's Oweynagat cave is believed to be the birthplace of Halloween traditions.
- The site served as an ancient capital and burial ground for Irish kings.

A newly opened 13km archaeological walking trail offers unprecedented access to Rathcroghan, an ancient royal site in County Roscommon, Ireland. This expansive complex, considered one of Europe's oldest unexcavated royal capitals, spans 6.5sq-km and features numerous earthworks and burial mounds.
The site holds deep mythological significance, particularly Oweynagat cave, often referred to as Ireland's "Gate to Hell." This cave is widely believed to be the origin point for ancient traditions that evolved into the modern festival of Halloween, linked to the goddess Mórrígan and the thinning veil between worlds.
Historically, access to Rathcroghan's numerous monuments, many on private land, was limited. The new looped trail connects key highlights, allowing visitors to explore the landscape and understand the connection between its diverse archaeological relics, folklore, and its role as a ceremonial gathering place and burial ground for ancient Irish kings.