Grotta della Dragonara

The Grotta della Dragonara at Miseno is a Roman cistern cut into coastal tuff. Its aisles and branching passages form an underground water-storage complex whose relationship with the sea has changed through the ground movements of the Phlegraean Fields.

Why it matters

The cistern illustrates the infrastructure behind Roman occupation of this shore. Its partly submerged condition also makes the long-term interaction between archaeology and bradyseism especially tangible.

What to notice

Rows of supports divide the principal space into five aisles. Hydraulic plaster and masonry lining helped retain water, while openings in the vaulted roof provided access to the reservoir. Side passages extend the plan beyond a single rectangular chamber.

Context and history

The cistern has been associated with the water needs of the nearby Roman residential landscape, including the villa traditionally linked with Lucullus. That connection is an interpretation rather than a secure identification of a particular owner's water tank. Later antiquarian interest and engravings record the monument's changing coastal setting, before modern archaeological study placed it within the wider system of Roman waterworks around Miseno.