Jackson’s Bay Live Cam

Geological Foundations and Coastal Dynamics

Jackson’s Bay nestles against the rugged coastline of Pembrokeshire, sculpted by Devonian Old Red Sandstone bedrock that dates back over 400 million years. The steep cliffs framing the bay reveal alternating layers of conglomerates, sandstones, and mudstones, each layer a snapshot of ancient river deltas once flowing across a supercontinent. Over millennia, wave action and chemical weathering have exploited bedding planes and joints, creating narrow clefts and blowholes visible at low tide. Tidal scouring at the base of the cliffs undercuts weaker strata, resulting in occasional rockfalls that gradually reshape the headland.