The Baluard de Sant Pere contains a museum with audiovisual presentations detailing the construction of the city’s ramparts. Rising from the northwestern corner of the Dalt Vila wall, this fortification has a Renaissance design preserved from its initial creation in the 16th century. Learn all about the ingenious construction methods used to form the historic center and its fortified walls.

Pass through the tunnel to reach the bunkers, where you’ll see intriguing displays including weapons and shields. Watch the video that explains the formation of the bastion itself. Walk through the old gates and climb to the upper terrace, where you’ll have an excellent view of the city.

In summer, a cinema company shows movies on a large screen outside the structure, with cushions laid out on the floor for seats. Enjoy the day’s feature film selection while you settle in next to a stunning vista of the surrounding Old Town district and the city walls.

Note that the tower, which was designed by architect Giovanni Battista Calvi, is also known as the Portal Nou (New Portal). The site opens Tuesday through Sunday from March until mid-December. Group visits are available in winter but you must book in advance. Pay a fee to enter and get free admission for children and seniors.

While in the area, make sure to visit the bastion’s southern counterpart, the Baluard de Sant Jaume. It has interactive exhibits allowing the whole family to try on armor and test the weight of the cannonballs.

The Baluard de Sant Pere marks the northwestern corner of the old city walls of Ibiza. It stands between Portal Nou Children’s Park, the Plaza Reina Sofia and the Plaça del Sol. Take a bus to the stop beside the San Cristóbel Chapel and walk north for a few minutes to reach the bastion.