Forte de São João Baptista das Berlengas

Human activity on the Berlengas archipelago dates back to antiquity, with Roman and Phoenician navigators using the sheltered coves for refuge. In 1513, with the support of Queen Eleanor of Viseu, Hieronymite monks established the Monastery of the Misericórdia da Berlenga to offer spiritual aid and rescue to victims of frequent shipwrecks. However, ruthless raids by Barbary pirates, French corsairs, and harsh Atlantic storms forced the monks to abandon the monastery in 1548.

Recognizing the island's strategic military value commanding the approaches to Lisbon, King John IV ordered the construction of a coastal fortress on the monastery ruins in 1651. Completed in 1656, the pentagonal stone fort proved its mettle in June 1666 during the Portuguese Restoration War. A small garrison of just 28 Portuguese soldiers commanded by Antonio Avelar defended the fort against a formidable Spanish armada of 15 warships and 1,500 soldiers. After a heroically fierce three-day siege in which the defenders killed over 500 attackers while suffering minimal casualties, the garrison was finally forced to surrender due to depleted ammunition.

The fort was restored in the mid-1800s, decommissioned as a military outpost in the early 20th century, and eventually converted into a modest seasonal guesthouse managed by the Friends of Berlengas Association. Today, the coastal fortress remains a protected national monument, preserved historic heritage landmark, and popular tourist destination off the coast of Peniche.

The primary legend of Forte de São João Baptista centers on the tragic fate of defender Antonio Avelar and his brave garrison during the 1666 Spanish siege. According to local lore, Avelar slipped past Spanish blockades in a small boat during the dead of night to secure help, but died at sea in a violent storm. His ghost is said to return to the fortress during thick fog, standing vigil on the stone ramparts facing the sea to ensure his men remain safe.

Another widely told story involves the Hieronymite monks who died during pirate raids in the 1500s; island fishermen report hearing Gregorian chants and solemn Latin prayers rising from the sea caves beneath the fort on quiet nights. Mariners sailing past the archipelago during Atlantic gales frequently report seeing ghostly phantom ships with glowing rigging vanishing into the jagged cliffs of the island. Local fishermen also speak of the 'Phantom Lookout', an eighteen-century Portuguese soldier whose luminescent spirit paces the arch bridge on stormy midnight hours.

Furthermore, oral narratives preserved among local Peniche mariners speak of a phantom boat that glides through the harbor mist without making a sound, guided by a lost Portuguese sentry who vanished during a 17th-century naval blockade. Old maritime folklore also warns that taking stones from the fort walls brings tempestuous storms upon one's vessel.

Guests staying overnight in the fortress rooms and nature park rangers stationed on Berlenga Grande report frequent inexplicable occurrences. In the interior stone rooms, disembodied footsteps echoing on the cobblestones are routinely heard during late night hours when all guests are in bed. Cold drafts blowing through closed stone embrasures, mysterious light orbs floating above the stone arch bridge, and heavy wooden doors latching shut on their own are frequently documented.

Overnight visitors have experienced vivid feelings of being watched while standing on the upper battlements, along with faint sounds of distant cannon fire, drumming, and clashing swords carried by the sea wind. Temperature drops near the former powder magazine are accompanied by the faint smell of black powder. Multiple visitors have also reported electronic camera equipment freezing completely until returning across the bridge to the main island, alongside unexplained shadow figures observed pacing the dark ramparts during quiet night shifts.

Constructed directly into the steep rocky outcroppings of a small coastal islet, Forte de São João Baptista features a distinct heptagonal polygonal layout constructed from heavy local granite blocks. A narrow stone masonry arch bridge connects the fortress securely across the sea channel to the main island of Berlenga Grande.

Within the interior layout, the central structure features a two-story fortified keep containing vaulted brick quarters, ammunition magazines, administrative offices, and a central open courtyard. Spatial features include broad gun battlements with embrasures commanding 360-degree Atlantic ocean views, subterranean storage cellars, guard posts, and stone entrance corridors leading to the central battery.

Visiting Forte de São João Baptista requires taking a 30-minute ferry ride from Peniche harbor to Berlenga Grande, operating daily from late spring through early autumn. Upon arrival at the island's main dock, visitors follow a scenic 1.5-kilometer hiking trail along the cliffs to reach the fort's bridge. Admission to walk the battlements and bridge is free. Basic dormitory accommodations and a small canteen operate inside the fort during summer months, requiring advance online bookings through the local municipality or association. Visitors must be in good physical condition as the terrain involves steep stone staircases and uneven cobblestone paths, with no vehicle transport available on the island.

The haunting reputation of Forte de São João Baptista is deeply tied to its absolute geographical isolation, dramatic violent military history, and sheer oceanic atmosphere. Rising starkly out of tempestuous Atlantic ocean waters on an uninhabited nature reserve, the fort's blood-soaked siege past, pirate raids, and mysterious monk heritage evoke a powerful paranormal atmosphere that captures the imagination of travelers.