Approximately 5 kilometers west of Caiguna, the Caiguna Blowhole offers a unique natural spectacle. Formed by the weathering of limestone bedrock, this blowhole "breathes" air in and out as atmospheric pressure changes, creating a fascinating phenomenon. Visitors can access the site via a short detour from the Eyre Highway, where a signpost guides the way. While the area is primarily a rest stop without facilities, it provides a peaceful environment for a break during the journey across the Nullarbor Plain.
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