Rocca a Mare Fortress, Heraklion Travel Guide

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Explore the historic Rocca a Mare Fortress in Heraklion, a Venetian-era guardian offering panoramic views and insights into Crete's rich past.

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Rocca a Mare Fortress

Dominating Heraklion's harbor entrance, the Rocca a Mare Fortress, also known as Koules, is a striking Venetian-era landmark. Built in the 16th century, it has protected the city for centuries and now hosts exhibitions and cultural events. Explore its historic chambers and enjoy panoramic views of the Aegean Sea.

A brief summary to Rocca a Mare Fortress

Heraklion, 712 02, GR
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Monday 8 am-8 pm
Wednesday 8 am-8 pm
Thursday 8 am-8 pm
Friday 8 am-8 pm
Saturday 8 am-8 pm
Sunday 8 am-8 pm

From Eve

Know before you go

Hi, I'm Eve. Here are a few practical things to know before exploring Rocca a Mare Fortress.

Wear comfortable shoes, as you'll be walking on uneven surfaces and exploring the large fortress.
Visit during the cooler morning or late afternoon hours to avoid the midday heat, especially in summer.
Check for cultural events or exhibitions happening at the fortress during your visit.
Bring a hat and sunscreen, as there is limited shade available within the fortress walls.
Take advantage of the panoramic views from the ramparts for memorable photos of Heraklion and the sea.

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Explore Rocca a Mare Fortress on the Map

A handpicked selection of must-see spots near Rocca a Mare Fortress, mapped for you.

Getting There

Walking

From Lion Square (Plateia Liontaria) in the center of Heraklion, walk towards the waterfront. Continue along the well-marked waterfront promenade, heading east. After a 10-15 minute walk, you'll see the Rocca a Mare Fortress directly ahead, at the entrance to the old port. There are no costs involved in this final approach.
Public Transport

From the Heraklion central bus station, take a local bus (such as route 1 or 2) heading towards the port area. The fare is approximately €1.50. Disembark at the terminal closest to the port and walk down to the waterfront where the fortress is located. Follow the waterfront path to your left to reach Rocca a Mare Fortress.
Taxi

Taxis are readily available throughout Heraklion. A short taxi ride from the city center to the Rocca a Mare Fortress will typically cost between €6 and €11, depending on the distance and traffic. Ensure the driver uses the meter.

Discover more about Rocca a Mare Fortress

The Rocca a Mare Fortress, or Koules, stands as a proud sentinel at the entrance to Heraklion's old Venetian harbor. This imposing structure, constructed by the Venetians between 1523 and 1540, has safeguarded the city from naval threats for centuries. Its strategic location and robust design made it a vital component of Heraklion's defenses.Originally, a Byzantine tower stood on this site in the 7th or 8th century, guarding against Saracen pirates. However, the Venetians, recognizing the need for a stronger fortification, demolished the old tower and began construction of the Rocca a Mare. The fortress was built atop a natural rocky outcrop, which the Venetians supplemented by sinking old galleons filled with rocks to expand the base. The name Koules is derived from the Turkish name Su Kulesi (fortress of water).The fortress is a two-story structure covering approximately 3,600 square meters. The ground floor, with its vaulted roof, houses 26 rooms that once served as storerooms for food and munitions, a meeting hall, and prison cells. The upper floor features a large courtyard surrounded by crenellations, offering stunning views of the harbor and the city.Inside the fortress, visitors can explore exhibits detailing its history and the role it played in defending Crete. You can also view findings from Jacques-Yves Cousteau's underwater expedition to the Dia islet. The fortress often hosts cultural events and exhibitions, adding to its allure as a vibrant tourist attraction.A prominent feature of the fortress is the winged Lion of Saint Mark, the symbol of Venice, which is displayed in marble compositions on the facades. These symbols served as a reminder of Venetian power and influence. During the Ottoman period, the fortress underwent repairs and modifications, including the addition of battlements, gun ports, and a small mosque. The Ottomans also used the fortress as a prison, holding Cretan revolutionaries within its walls.