Blue Cave Tour from Trogir & Split (Biševo)
The glowing sea cave on Biševo, and the open-sea islands around it
The Blue Cave — Modra špilja — is a sea cave on the island of Biševo, off Vis in the open Adriatic. For a few hours around midday, sunlight enters through a submerged opening and reflects off the pale seabed, filling the chamber with an electric silver-blue light. It is the most spectacular sight reachable from Trogir and Split in a day, and the most weather-dependent.
Where is the Blue Cave?
On the north-east shore of Biševo, a small island beyond Vis, roughly 40 nautical miles from Trogir — around two hours each way by fast boat across open sea. There is no way to reach it except by boat, and no way inside except in a small local vessel.
When it glows
The light effect depends on a high sun, so the cave is at its best between about 11:00 and 14:00. That is also when it is busiest: entry is ticketed and controlled, visitors transfer into a small boat to go inside, and July and August queues can run over an hour. Arriving outside the window means a darker, greyer cave.
Why weather decides everything
The crossing is exposed and the cave entrance is low, so any swell closes it — sometimes at short notice, sometimes on a morning that looks calm in the harbour. Reputable operators cancel rather than run it. If the Blue Cave is the reason you are coming, leave a spare day in your itinerary.
The islands around it
The trip is far more than the cave. A full day takes in Komiža, the old fishing town on Vis; Stiniva, a cliff-walled cove reachable only from the sea; Budikovac and its own shallow blue lagoon; then Hvar Town and the Pakleni Islands on the way home.
How SeaExplore visits the Blue Cave
As a private full-day charter — the Blue Cave & 5 Islands, €1,300 per boat for up to 12 guests, nine to ten hours with an early start. Cave entry tickets and lunch in Komiža are paid separately. When Biševo is unreachable, the sheltered inshore routes almost always still run.
Why go
- The glowing blue chamber of Modra špilja on Biševo
- Stiniva cove — cliff-walled, reachable only from the sea
- Komiža, the working fishing town on Vis
- Budikovac's shallow blue lagoon for swimming
- Hvar Town & the Pakleni Islands on the cruise home
Blue Cave in pictures
Tours that visit Blue Cave
Small-group or fully private — pick the trip that fits your day.
Blue Cave — frequently asked questions
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How much is a Blue Cave tour from Trogir or Split?
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Last updated June 2026.