Almourol Castle, Portugal: Templar Island Fortress & Day Tours from Lisbon
Almourol Castle (Castelo de Almourol) stands on a small granite island in the middle of the Tagus River (Rio Tejo), 130 km northeast of Lisbon. The island rises 18 meters above the river surface and measures approximately 310 m in length by 75 m in width. The castle has occupied this site continuously since the 12th century and was classified as a National Monument of Portugal by decree on 16 June 1910. Access is by boat from the village of Tancos, a 5-minute crossing.
A Castle on a River Island
The Tagus River at this point runs between the municipalities of Vila Nova da Barquinha on the south bank and Constância on the north bank, approximately 4 km from Vila Nova da Barquinha town center. The island sits just below the confluence of the Tagus and the Zêzere River – a strategic position that made it a natural defensive site across multiple periods of Portuguese history.
The position was not merely picturesque. Control of this crossing point meant control of river traffic moving between the Atlantic coast and the interior of the Iberian Peninsula. Every occupying force from the Romans through the Moors to the Knights Templar understood its value.
From Roman Fort to Templar Stronghold
The site’s history begins with a Lusitanian castro (pre-Roman hilltop settlement) conquered by Roman forces in the 1st century BCE. Archaeological excavations in 1898–1899 recovered Roman coins and a sepulchral slab; a 2018 investigation uncovered 8th-century Islamic ceramics comparable to findings in Santarém, documenting continuous occupation across Roman, Visigoth, and Moorish periods.
The Moorish name for the site was “Al-morolan” – commonly interpreted as “high stone” – from which the modern name Almourol derives. Portuguese forces reconquered the position in 1129 during the campaigns of Afonso Henriques, Portugal’s first king.
In 1159, King Afonso Henriques granted the castle and surrounding territory to the Knights Templar. The Templar Grand Master in Portugal, Gualdim Pais, rebuilt and substantially enlarged the fortress in 1171. An inscription above the principal gate records this date precisely: “Era MCCIX fes este castel G. Pais” (In the era 1209 – equivalent to 1171 AD – G. Pais made this castle). Gualdim Pais was the same Templar master responsible for founding the city of Tomar in 1160 and constructing the Convent of Christ, 34 km north of Almourol.
The Knights Templar Order was dissolved by Pope Clement V in 1312. After that date, Almourol lost its strategic role and fell progressively into disuse. By the mid-18th century, a parochial survey noted the castle had “been abandoned for about a hundred years.” Restoration work began in the 1940s under the Estado Novo administration; the castle was subsequently designated an official residence of the Portuguese Republic, a status it retains symbolically today.
The Castle Structure
The castle occupies the entire upper surface of the island. It consists of two concentric enclosures:
Outer wall: An irregular rectangular perimeter following the island’s natural contours, fitted with 9 circular towers – 4 facing west, 5 facing east. The towers allowed archers and crossbowmen to cover all approach angles from the river.
Inner enclosure and keep: At the highest point of the island stands the Torre de Menagem (keep), a three-story square tower. It provided the garrison’s last line of defense and offered views across both the Tagus and the Zêzere confluence. A Templar cross is visible carved into an east-facing window of the keep. The construction material is local granite ashlar masonry. A “traitors’ gate” on the river-facing wall allowed for emergency supply deliveries or escape by boat without exposure to the main gate – a standard feature in island fortifications. The Almourol Templar Interpretation Center (CITA), located on the southern riverbank at Tancos, provides context for the castle’s history before the boat crossing. Entry to CITA is included in the admission ticket.
Almourol in Literature
Almourol Castle appears in two of the most significant works of Iberian chivalric literature.
In the medieval romance *Amadis de Gaula* – the foundational Iberian chivalric novel, written in Portuguese/Castilian and widely circulated from the 14th century – the castle features as the residence of the giant Almourol, guardian of a princess. The castle’s island setting, its dramatic silhouette, and its Templar associations made it ideal material for romantic fiction.
In the 16th century, Francisco de Moraes referenced the castle in *Palmeirim de Inglaterra* (1544), a Portuguese chivalric romance that was translated into English and enjoyed wide European circulation. The association with knightly legend contributed to the castle’s “rediscovery” by Romantic-era travelers and writers in the 19th century, who found in it an ideal image of medieval Portugal.
Visiting Almourol Castle: Practical Information
Access: By boat from Tancos (south bank). The crossing takes approximately 5 minutes. Boats depart frequently during opening hours in summer; last boat departs 20 minutes before closing. Reservations through Junta de Freguesia de Tancos: +351 249 712 094.
Opening hours: 1 March – 31 October: 10:00–13:00 and 14:30–19:00. 1 November – 28 February: 10:00–13:00 and 14:30–17:30. Closed: 1 January, Easter Sunday, 25 December.
Admission (includes boat transfer + castle + CITA interpretation center): Adult: €4.00, Children 6–12: €2.00, Children under 6: free
Recommended visit time: 1 to 1.5 hours for the castle and CITA. Combine with lunch in Tancos or Constância (10 minutes north by car) before or after the visit.
Wear: The island surface is uneven granite; closed-toe shoes are essential. There is no café or water point on the island.
Getting to Almourol from Lisbon
De carro: 130 km northeast via A1 north, then A23 east toward Abrantes (exit Constância/Almourol). Journey time: approximately 1 hour 20–30 minutes without traffic. Parking is available at Tancos (free, riverside).
By train: Alfa Pendular or Intercidades from Lisbon Santa Apolónia or Oriente stations to Entroncamento (approximately 1 hour 20 minutes). From Entroncamento, taxi to Tancos (approximately 10 minutes, 7 km). There is no direct train to Tancos.
By guided tour: Almourol is almost always combined with Tomar on day tours from Lisbon – the two sites are 34 km apart (approximately 30 minutes) and complement each other well: the Templar castle at Almourol and the Templar headquarters at Tomar tell a continuous story. Adding Fátima (50 km south of Tomar) makes a full-day central Portugal circuit.
Private Tours to Almourol from Lisbon
Yellow Cab TT Tours offers private day tours from Lisbon that include Almourol Castle. All tours depart from your hotel or central address in Lisbon in a private vehicle. All tours are private with no minimum group size. Guide languages: English, French, Spanish, Portuguese.
Perguntas frequentes
Where is Almourol Castle?
Almourol Castle stands on a small granite island in the Tagus River, 130 km northeast of Lisbon, near the village of Tancos in the municipality of Vila Nova da Barquinha.
How do you get to Almourol Castle?
By boat from Tancos. The river crossing takes approximately 5 minutes. Boats operate during opening hours; the last departure is 20 minutes before closing.
Who built Almourol Castle?
The site has Roman and Moorish origins. The current castle was rebuilt by Gualdim Pais, Grand Master of the Knights Templar in Portugal, in 1171. An inscription above the gate documents the exact date.
What is the connection between Almourol and the Knights Templar?
King Afonso Henriques granted Almourol to the Knights Templar in 1159. Grand Master Gualdim Pais rebuilt it in 1171. The same Gualdim Pais founded the city of Tomar in 1160 and built the Convent of Christ there – making Tomar and Almourol the two principal Templar sites in Portugal.
Is Almourol Castle a National Monument?
Yes. It was classified as a National Monument of Portugal by decree on 16 June 1910 – one of the earliest such classifications in Portugal.
How much does it cost to visit Almourol Castle?
€4.00 for adults, €2.00 for children aged 6–12, free for children under 6. The ticket includes the boat transfer, castle entry, and the Almourol Templar Interpretation Center (CITA) on the riverbank.
Can I combine Almourol with Tomar in one day?best beach in Arrábida?
Yes. Tomar is 34 km from Almourol — approximately 30 minutes by car. Most private day tours from Lisbon combine the two sites. Gualdim Pais built both, making the historical connection direct and logical.
Is Almourol suitable for children?
The boat crossing and island setting make it engaging for children. The terrain is uneven granite — closed-toe shoes are needed. Children under 6 enter free.
When is the best time to visit Almourol?
April through June and September through October offer the most comfortable conditions. July and August are hot with higher visitor numbers. The castle is visually striking at any time of year.
Is there a restaurant or café at Almourol Castle?
No. There is no food or water available on the island. Bring water, particularly in summer. Cafes and restaurants are available in Tancos (5-minute walk from the boat landing) and in Constância, 10 minutes north by car.