Barnack Hills and Holes SSSI Adventures

Barnack Hills and Holes SSSI, located near the village of Barnack in Cambridgeshire, England, is a protected area renowned for its distinctive limestone grassland ecosystem and historical significance. The site comprises a former medieval limestone quarry, with dramatic, uneven terrain marked by deep hollows and steep hills formed through centuries of quarrying activity. This unusual topography has created a wealth of microhabitats that support an exceptional variety of plant species, including rare orchids and other wildflowers characteristic of calcareous grassland environments. The area is designated as a Site of Special Scientific Interest because of its ecological importance and its role in conserving these rare habitats.

Visitors to Barnack Hills and Holes can explore informal walking paths that wind through the grasslands and quarry hollows, providing close encounters with wildflowers, butterflies, and diverse bird species. The site also offers opportunities for geological interest with visible strata and evidence of medieval quarrying techniques. Managed carefully to maintain its biodiversity, the site is a refuge for wildlife and a living example of historic land use in the region. Its quiet and open atmosphere makes it appealing for photographers, botanists, and anyone interested in natural history, while also being accessible from nearby towns. The protection of Barnack Hills and Holes ensures that this special landscape and its species remain preserved for future generations.