Nemi: The Sacred Lake Where Caligula’s Pleasure Ships Sleep
Lake Nemi is, for the casual visitor, a quiet volcanic lake known for its wild strawberries and its early-summer Sagra delle Fragole festival. For the archaeologist, the historian of religion, and the traveller drawn to the deeper currents of the Roman past, Nemi is something more interesting: the most important sanctuary of pre-Roman Italy, the home of the cult of Diana Nemorensis, the site of the strange annual ritual of the Rex Nemorensis — the priest-king who could only be replaced by the man who killed him — and the lake at the bottom of which Caligula sank his two great pleasure ships, recovered in the 1930s, and tragically lost again to a German fire in 1944. A private archaeological day at Nemi is the most historically dense single day available in the Castelli Romani.
The Sacred Grove of Diana Nemorensis
The temple of Diana Nemorensis — Diana of the Wood — stood on the lower slope of the crater, in the «nemus», the sacred grove that gave the lake its name. The cult was the most archaic in Roman religion: pre-Indo-European in its roots, with rites that the Roman literary tradition itself found strange. The sacred precinct, excavated continuously since 1885, contains the foundations of three superimposed temples; the lower terrace contains the remains of the sacred spring; the upper terrace, the priest-king’s residence. The visit to the sanctuary takes one hour, with the on-site archaeologist when arranged in advance through our office.
The Rex Nemorensis: the priest-king of the wood
The priest of Diana at Nemi — the Rex Nemorensis, the «king of the wood» — held his office only as long as he could defend it. Any escaped slave who succeeded in breaking off a branch of the sacred oak in the grove acquired the right to challenge the reigning priest to single combat; the survivor became the new priest, and reigned in turn until the next challenger arrived. The strangeness of the rite fascinated James George Frazer, who built his entire twelve-volume Golden Bough around the Nemi sanctuary. The historical reading of the Rex Nemorensis cult — its archaic roots, its survival into the imperial age, its theological dimensions — is the intellectual core of the morning.
The Museum of the Ships: Caligula’s pleasure barges
The Museo delle Navi Romane sits on the lake shore at the site where, between 1929 and 1932, two of the largest ships of antiquity — Caligula’s pleasure barges, seventy and seventy-three metres long — were recovered from the bottom of the lake. The ships were the most extraordinary archaeological find of the Italian fascist period; they were destroyed by a German fire on 1 June 1944, days before the liberation. The museum today displays the recovered fragments, full-scale reconstructions of the two ships, and the bronze fittings, mooring rings, and lead piping recovered from the lake. The visit takes ninety minutes.
The lakeside lunch: Specchio di Diana
The lunch is at the Specchio di Diana — the small restaurant on the lakefront at Nemi, whose terrace looks directly at the spot where the ships were recovered, and whose specialty is the lake’s coregone served with the Frascati Superiore of the surrounding hills. The lunch takes two hours; the strawberries (in season) are served as the final course, paired with the slightly sweet vino di Marino.
Combinations
The Nemi archaeological day combines with two further programmes. We frequently propose it before our companion Lake Nemi day for the strawberry season in a single longer programme, or pair it with the Castel Gandolfo Papal Palace day for the second Castelli lake. For guests fascinated by the deeper Roman religious archaeology, we also propose our Ostia Antica vs Pompeii archaeological day as the natural extension. The complete circuit is also available through the Tour of the Roman Castles.
To curate a private archaeological day at Lake Nemi with the sanctuary of Diana and the Museum of Ships, contact Olga via Telegram.
