Biševo Blue Cave

€24 per adult in high season (20 June – 10 September) and €18 the rest of the season (1 April – 19 June and 11 September – 31 October); children 6–12 pay €12/€9 and under-6s go free. That is the official price list of Nautički centar Komiža, which runs the cave, and it is the figure every operator quotes for 2026. The ticket buys one small-boat transfer into the cave, the visit itself, and free entry to the Visitor Centre exhibition on Biševo. It is sold at Mezuporat cove — cash or card at the office, and on most tours in cash to your crew. No tour on the booking platform includes it: it appears under exclusions on every listing, including the one featured here. Add it to the tour price when you compare.

No — not on any tour we track, from Split, Trogir, Hvar or Vis. The tour price buys the speedboat, skipper and guide, snorkel gear and the day's other stops; the cave itself is a separate ticket sold on Biševo by the cave's operator, and the listings say so explicitly under 'not included'. Most crews collect it in cash on the boat before Mezuporat, so bring exact euros — €24 in high season, €18 outside it. Some listings quote older figures; the current official price list is the one above.

Late morning to early afternoon — roughly 10:30 to 13:00, with the strongest colour around 11 to noon in midsummer. The blue is sunlight entering through an underwater opening and lighting the water from below, so it needs the sun high and the sky clear. That is why the Split boats leave at 8–9am and why the queue at Mezuporat peaks in the same wave. Season-wise, June and September give good light with far shorter waits than July–August; the cave operates from 1 April to 31 October, and outside that window the small boats generally do not run.

Five to ten minutes inside, on a slow boat circuit; the official maximum is about fifteen. Add the wait at Mezuporat for a small boat — minutes in the shoulder season, an hour or more on July and August middays — and the ten-minute transfer each way. On a full-day tour from Split the cave is one stop of six or seven; from Komiža it is a two-hour outing including the queue. It is short by design; the colour is the point, and the boats keep moving so everyone in the queue gets their turn in the light.

No — swimming inside the Biševo Blue Cave has been banned since 2019, with fines for anyone who tries. You see it from the small boat only. If swimming into a sea cave is what you want, the Green Cave on the islet of Ravnik, which most Split and Hvar tours also visit, allows it, and the tour day itself has plenty of swim stops — Stiniva bay, the Budikovac Blue Lagoon, the Pakleni islands. The Blue Cave is a look, not a dip.

Because the cave closes on swell, not on sunshine — southerly wind (the jugo) and the swell it leaves behind can seal the low entrance under a perfectly clear sky. Northerlies, the bura and the afternoon maestral, usually leave it open. Operators check conditions each morning; when the cave is shut they typically reroute to the Green Cave and the islands, and if the whole day is called off the free cancellation on these tours applies. Book the cave early in your trip so a closed day still leaves you another chance.

From Split or Trogir it is a full-day speedboat, about 30 nautical miles each way (1h20 to 2h depending on the boat); from Hvar a shorter speedboat day; from Komiža on Vis a 15–20 minute hop by taxi boat. Every route ends the same way: your boat moors in Mezuporat cove on Biševo, you buy or are handed the cave ticket, and you transfer to a licensed small boat of eight to twelve people that enters the cave. The Komiža taxi boat is roughly €35 plus the ticket; the Vis-based speedboat in our comparison holds a fast-entry card as an island carrier, so its passengers get their turn ahead of the mainland wave.

Yes — with the right expectations: a two-hour window of light, ten minutes inside, and a day that only exists if the wind allows. Under a bura sky at eleven the water genuinely glows electric blue from beneath the boat, and nothing else on the Dalmatian coast does that. Disappointment almost always comes from three things — arriving after 2pm, going on a jugo day, or expecting to swim inside. Take a morning boat, bring the €24 in cash, and treat the rest of the tour — Komiža, Stiniva, the Budikovac lagoon, Hvar — as the day, with the cave as its ten-minute centre.