Parco Sommerso della Gaiola (Gaiola Marine Protected Area)

The Parco Sommerso della Gaiola, or Gaiola Marine Protected Area, is a small marine reserve at the tip of Posillipo in Naples, Campania, Italy, with its entrance at Discesa Gaiola 466 off Via Posillipo, about 9 km from Piazza del Plebiscito. The park protects two small islets and the seabed around the remains of the Roman villa of Pausilypon, and its underwater archaeological sites make it as much a heritage site as a bathing place. There is a limited-access small beach and a mole, rather than an open sandy shore, and the rock and pebble shoreline is reached by a long stairway down from the road. Water is clear and the seabed rich in marine life, which is why the area was protected. Swimming inside the integral protection zone is prohibited. Access to the beach is by numerus clausus, meaning capped numbers, and advance booking through the park's online system is reported, with slots of up to 200 people and up to three visits per week. Because the system has changed several times, the current booking rules should be confirmed on the Gaiola marine protected area website before travelling. The setting is sheltered and small, with a calm and nature-focused atmosphere rather than a party or surf scene, and it appeals to snorkellers, kayakers and visitors interested in archaeology. Glass-bottom boat and kayak tours are offered to see the submerged ruins from the water. There are no on-site facilities, so visitors should bring water, sun protection and food, and the nearest places to eat are in Marechiaro and along Via Posillipo. To get there, take Metro Line 2 to Mergellina and then an ANM bus along Via Posillipo or a taxi for about EUR 12-18. The descending stairway makes the route unsuitable for those with limited mobility, and the return climb is steep.