Vis and Bisevo

Teti is the clearest recreational entry, with upper sections around 8 m and a deeper limit near 31 m. Vassilios extends from roughly 22 m toward 53 m, while Fortunal occupies about 35 m to 52 m, placing much of both beyond a standard no-decompression holiday profile. B-17 and B-24 aircraft remains can be deeper still and may require technical certification, staged gas, and decompression. Exact classification depends on the route, current, gas, certification, recent experience, and operator permission, not the wreck name alone.

No. The reviewed Blue Cave conduct rules prohibit bathing, swimming, and diving inside the cave. Visitors reach Mezoporat on Bisevo, buy or confirm a ticket, and transfer to the concessionaire's small boat for the managed entry. Local operators usually aim for late morning, when the underwater opening creates the strongest blue light, but weather and queues control the actual timing. Choose Porat or another legal beach stop for swimming, and reject any plan to enter independently when the cave is closed. The narrow entrance and active boat movement make that both unsafe and unlawful.

From Split Airport, take the direct shuttle, taxi, or another road transfer to the central Split ferry port, about 24 km away. The shuttle normally takes around 30 minutes outside heavy traffic and stops beside the bus station and ferry terminal. Jadrolinija line 602 then reaches Vis in a published 140 minutes and runs year-round. A seasonal fast ship adds options from June through September. From Vis, travel by road to Komiza, then use state passenger line 612 or a Bisevo excursion transfer. Check whether the public timetable fits the cave queue and your return. Allow a large connection buffer or overnight in Split after an international arrival.

A full 7mm suit and hood are the conservative choice for repetitive or deep diving. Local guidance notes that water below about 20 m can remain around 16°C to 18°C, even when the shallows are warmer than 20°C. Bring a familiar computer, DSMB and reel, torch, certification cards, and a well-fitting mask. Confirm whether rental regulators are DIN or need a yoke insert. Nitrox, trimix, rebreather cylinders, sorb, and unusual valves require advance discussion, with some specialist items needing about a week of notice.

No destination-wide marine-park tag or UNESCO Geopark dive pass was identified in the reviewed official sources. The geopark is a managed territory, not simply a national park with one universal entry ticket. However, Croatia protects underwater cultural heritage and uses activity-permit procedures around archaeological material and certain wrecks. The practical answer is to book regulated sites through an authorized local dive center, which confirms permissions and any added charge. Never remove or move amphorae, aircraft pieces, ship fittings, coral, shells, or geological material, even when an object appears loose or unguarded.

Choose Komiza when Bisevo, western wreck routes, freedive training, and B-24 Diving Center are the priorities. Choose Vis Town when you want to walk from the ferry, dive with Nautica Vis, and spend more time around Kut, ancient Issa, eastern bays, and the main harbor. The towns are linked by road, but daily gear transport and seasonal bus timing add friction, so stay near the operator for an intensive dive week. A split stay works best for a longer mixed trip, with diving concentrated in one base and a few topside nights in the other.

B-24 Diving Center in Komiza advertises instructor-monitored freedive training that begins with stretching and continues by fast boat to a location chosen for the diver's target depth. The center says the buoy, rope, and lanyard are included and recommends booking several days ahead. Its published freediving course price list is currently unavailable, so confirm whether your dates offer coaching, a guided session, or a full certification course. Never substitute an informal buddy for trained safety, never hyperventilate, and do not use Blue Cave, wrecks, or caverns as breath-hold overhead environments.

A non-diver week can combine Blue Cave, Stiniva, the Komiza Geopark Visitor Centre, Mount Hum, Vis Town and Kut, ancient Issa, fishing heritage, military history, vineyards, food, and beaches such as Srebrna or Porat. The UNESCO Global Geopark ties these activities together through limestone, volcanic geology, caves, dry-stone landscapes, and maritime culture. Keep at least one boat day movable because Blue Cave and exposed routes can close in poor sea conditions. In July and August, put hikes and town walks early or late and reserve popular restaurants and excursions.

Expect the operator to postpone, cancel, or substitute the route. Blue Cave can close when the low entrance is unsafe, and exposed wrecks or outer-island walls may be replaced by a sheltered reef, archaeology site, skills dive, or land day. This is normal risk management, not a service failure. Protect the trip by staying at least five nights, leaving one or two boat days uncommitted, and avoiding a same-day must-do excursion before departure. Check the official cave status and Jadrolinija notices, but give the local skipper or dive center the final authority on conditions.

Vis Town has a local outpatient clinic with emergency and ambulance functions, but serious diving injuries may require evacuation to Split. Call 112 for coordinated emergency response or 195 for a maritime incident, including a diver in trouble or medical transport at sea. A government medical-facility listing updated in 2026 confirms a hyperbaric chamber at Clinical Hospital Split. Do not delay while trying to call a chamber directly. Provide the boat position, dive profile, symptoms, oxygen status, and insurer details to dispatch, begin first aid under professional direction, and carry insurance covering recompression and evacuation.

Five nights is a practical minimum for a mixed trip, while seven nights is better for divers targeting specific wrecks. A strong week allows three or four dive days, one flexible Bisevo or Stiniva boat day, one Vis Town and Komiza cultural day, and one weather reserve or inland day. Technical teams may need longer because checkout dives, gas preparation, site permissions, decompression load, and weather can prevent immediate access to the deepest objectives. Keep the final day non-diving for ferry logistics, a relaxed surface interval before flying, and a backup topside experience if an earlier boat day moved.