The Sea Beyond (Mare Fuori) filming locations in Naples: what you can visit
The Sea Beyond (Mare Fuori) is not filmed on Nisida. The exteriors of the juvenile prison are shot at the Italian Navy base on Via Acton, between the Molosiglio marina and Molo San Vincenzo. It is a military area and you cannot visit it. You can visit other locations from the series: Toledo metro station, the old town alleys, Gaiola and the Piscina Mirabilis.
At a glance
- Prison set
- Navy base, Via Acton: military area, special openings only
- The real prison
- The Nisida juvenile institute inspired the series; no visits
- Easiest to see
- Toledo station (Line 1) and the old town alleys
- Closed now
- Bagnoli pier: works from 14 September 2026 for about 5 months
- Time needed
- Half a day in the centre; a full day with Gaiola or Bacoli
What you can and cannot visit
| Place | In the series | Can you visit? |
|---|---|---|
| Navy base, Via Acton | Prison exteriors, from season 1 | No, military area |
| Nisida juvenile institute | The real prison behind the story | No |
| Molo San Vincenzo | Next to the set | Only at times: see below |
| Toledo station, Line 1 | Filippo and Naditza, season 1 | Yes. You need a ticket beyond the gates |
| Old town alleys, San Gregorio Armeno, Porta San Gennaro | Gaetano's route to the Capasso pizzeria | Yes, free |
| Bagnoli pier, Via Coroglio | Ciro and Rosa, season 3 | Closed for works since 14 September 2026 |
| Gaiola, Posillipo | Gaetano and Mimmo, season 3 | Yes, with controlled access |
| Piscina Mirabilis, Bacoli | Season 3 finale | Yes, check opening hours |
| Lido Don Pablo, Castel Volturno | Filippo and Naditza, season 3 | Beach club, about 40 minutes by car |
The Navy base and Molo San Vincenzo
The prison set stands inside the base, with the Maschio Angioino castle in the background. Do not expect to see it: this is a military area and there is no free entry.
There have been a few special openings. The FAI Spring Days opened the base in March 2024, and guided walks with booking took place in 2024 and 2025.
Sources disagree about Molo San Vincenzo. Italia.it, the national tourism portal, calls it accessible. Napolike wrote in August 2026 that it is normally closed to the public. In January 2026 the mayor announced it would reopen soon, with no date. Check the City of Naples website before you go.
Tip: the Molosiglio gardens are right by the base area. Take Metro Line 1 to Municipio, then walk towards the sea.
A walk through the centre
- Toledo station, Metro Line 1: it appears in the first episode.
- Spaccanapoli and San Gregorio Armeno, Gaetano's alleys.
- Porta San Gennaro, where you will find the Capasso pizzeria from the series.
- Head back by metro: Cavour on Line 2 is the handiest stop.
Further out
- Gaiola: this is a protected marine area. Entry is limited and in summer you must book on the park's website. It is awkward by public transport, so plan your route first.
- Bagnoli: the city has not yet given a reopening date for the pier. Check before you go.
- Bacoli: the Piscina Mirabilis is a huge Roman cistern. The Villa Mirabilis restaurant mentioned by Italia.it is a private business.
Recent seasons also filmed in Rione Luzzatti and Ascarelli, in Fuorigrotta and on Piazza Lobianco. These are residential areas, so do not photograph people or homes, and stay out of courtyards.
More film locations
- Film and TV locations in Naplesall our guides
- My Brilliant Friend locationsRione Luzzatti and the centre
- Metro and funicularsLine 1, Toledo and Municipio
- Mergellina and Posillipothe Gaiola area
Frequently asked questions
Where is The Sea Beyond (Mare Fuori) filmed?
The prison exteriors are shot at the Italian Navy base on Via Acton in Naples, not on Nisida. Other scenes were filmed at Toledo station, in the old town, in Bagnoli, at Gaiola, in Bacoli, in Castel Volturno, in Rione Luzzatti and Ascarelli and in Fuorigrotta.
Can you visit the prison from The Sea Beyond?
No. The set is inside a military base, and the real juvenile institute on Nisida is not open to visitors. The base has opened only on special occasions, such as the FAI Spring Days in 2024.
Is The Sea Beyond filmed on Nisida?
The series is inspired by the Nisida juvenile institute, but the prison you see on screen is shot at the Navy base near the Maschio Angioino.
Is Molo San Vincenzo open to the public?
There is no clear answer: 2026 sources disagree and we found no official opening hours. Check the City of Naples website before you go.
Which The Sea Beyond locations are free?
The old town alleys, San Gregorio Armeno and Porta San Gennaro are public streets. Gaiola is also listed as free, with controlled access. At Toledo station you need a metro ticket to go beyond the gates.
Where to stay near the seafront
48 places to stay in Chiaia on Napolibnb.it, the Naples holiday-rental portal: you contact the host directly, with no booking fees. Every listing shows its official CIN code.
