Zirje Island

Žirje is the largest and most remote permanently inhabited island of the Šibenik archipelago, lying about 22 kilometres southwest of Šibenik. It covers 15.08 square kilometres — two limestone ridges with a fertile valley running between them — and had a population of 147 at the 2021 census. The name is generally traced to žir, the Croatian word for acorn, a reminder that those ridges once carried Mediterranean oak forest rather than the maquis scrub that covers them today.

Justinian's Forts and a Long Military History

Žirje sits astride the sea lane between the open Adriatic and the approaches to Šibenik, and that position has been fortified for fifteen centuries. Two hilltop forts survive from the 6th century, built as part of the Byzantine defensive chain along the eastern Adriatic under Justinian I: Gradina, above Velika Stupica, and Gušterna, above Mala Stupica. Both were raised in the heavy block masonry typical of Byzantine work of the period, and both command long views over the shipping route they were built to watch.

Gradina has been excavated repeatedly since 1977, and the bulk of its pottery finds date to the middle of the 6th century, though the site has also produced material from the Iron Age, the Hellenistic and early Imperial periods and the medieval centuries — evidence that the hill was worth holding long before and long after Justinian's campaigns in the Adriatic. Walls were added on those older foundations in the 12th and 13th centuries, and the military story continued into living memory. The Yugoslav People's Army took over the southern and southwestern parts of the island and held them for close to fifty years, restricting civilian access. The practical result is that much of Žirje was never built on while tourism transformed the rest of the Dalmatian coast, and abandoned military structures are still scattered across the higher ground.

A Shrinking Village and a Working Valley

The island's single settlement, also called Žirje, sits inland on the valley floor rather than on the water — the same defensive instinct that shaped so many Adriatic islands — with its harbour at Muna on the northeast coast a short walk downhill. Muna is the only ferry port on the island and its link to Šibenik; the service runs by way of Kaprije, and the length of that trip is a large part of why Žirje feels further from the mainland than the map suggests. The connection is formally part of the D128, one of the Croatian state roads whose route includes a sea crossing, which is as close as the island comes to being on the road network at all.

The population figures tell the story of the last seventy years plainly: 720 residents in 1953, 207 by 1981, 124 by 2001 and a low of 103 in 2011, before a modest recovery to 147 in 2021. Those who remain still work the valley, which produces grapes, olives, figs, plums and sour cherries, and fishing remains part of the local economy — the waters around the island have long had a reputation as among the richest in the archipelago. Away from the cultivated ground the island is maquis: low, aromatic scrub over bare limestone, cut by dry-stone walls that mark out fields many of which have not been worked in decades.

Bays, Anchorages and the Blitvenica Light

The coastline is deeply indented, and the two bays on the southwest side are the reason most sailors know the island at all. Velika Stupica is the larger and busier of the pair, a broad inlet with good shelter and a family-run restaurant ashore; Mala Stupica next door is smaller and quieter, and Koromašna offers another well-protected option. Smaller coves such as Mikavica are used by boats looking for an undisturbed night.

Seven kilometres to the southwest, at the outer edge of the Šibenik archipelago, the Blitvenica Lighthouse marks the approach from the open sea. Built in 1872, its octagonal tower stands 21 metres tall, putting the light 38 metres above sea level with a range of 24 nautical miles. It was automated in 1990, but keepers were brought back in 2002 and still work the rock in fifteen-day rotations. The whole Šibenik archipelago lies less than ten nautical miles from the Kornati islands, so Žirje also sits within easy reach of the national park's outer chain. Given how easily it is reached from Šibenik, many charter guests anchor here for the afternoon before carrying on towards the Kornati.