Luštica peninsula
The Blue Cave in Montenegro, on your own boat
Reach the Blue Cave between 11:00 and 12:00. That is the window when the sun gets low enough into the entrance for the water inside to light up from below and turn the whole grotto blue; outside it the cave is a grey hole in a cliff. It is two hours from Porto Montenegro in Tivat, which means leaving by nine. A private charter that does the cave, the submarine tunnels, Mamula and a long swim at Žanjic starts at €3,000 for eight hours.
Why the time of day decides everything
The cave has no light of its own. Everything you have seen in photographs is sunlight arriving from outside, under the water.
The entrance faces so that between roughly 11 and 12 the sun sits at the angle where its light passes through the water at the mouth and reflects up off the pale rock on the bottom. The whole chamber fills with blue from underneath. It is not a trick of the camera; it looks like that.
Before that window the sun is too high and behind the cliff. After it, the light comes in flat across the surface instead of under it, and by mid-afternoon you are looking at a grey cave with a lot of boats in it.
This is also why the queue outside is worst at exactly the wrong time. The group tours leave the towns after breakfast, load up, and arrive at two or three — which is when the parking is easiest and the cave is at its dullest. Leaving Tivat at nine puts you inside during the window and usually ahead of them.
One more thing about it: clouds matter more than the season does. On an overcast day the effect is muted no matter what time you arrive, and there is no forecasting that a week ahead. The captain will tell you the morning of.
The western route, hour by hour
The cave is the anchor point and everything else fits around it. Eight hours is the honest minimum for this route.
09:00
Out of Porto Montenegro
Leaving now is what makes the window. Past Stradioti island and then west along the Luštica shore, which is the empty side of the bay.
09:45
The submarine tunnels
Tunnels cut horizontally into the cliff so Yugoslav submarines could be hidden inside the rock. They are still there, still open to the water, and you can take the boat right up to the mouth.
10:30
Mamula
An Austro-Hungarian fort on its own island at the mouth of the bay. It was a prison camp under Italian occupation and it is a hotel now, which is a lot of history for one small rock.
11:00
The Blue Cave
Into the window. We go in slowly, and if the light is doing what it should, nobody says anything for a couple of minutes.
11:40
The second arch
A little to the right of the cave there is another opening in the rock that almost no boat stops at. It is quieter, and on a busy day it is where we go while the first one clears.
12:30
Žanjic
A long stop. This is the clearest water on the Montenegrin coast and the reason people who have done this route once ask for it again.
14:00
Lunch
Ribarsko Selo or Fort Rose, both a short hop from Žanjic, or the grill on the stern while you stay at anchor.
16:00
Rose and back
Past Rose, the quietest village on this side, then back east through the narrows with the afternoon light behind you.
Private boat against the group tours
The group speedboats out of Kotor and Herceg Novi are the usual way to the cave. Here is the actual difference.
| Group speedboat | Marea | |
|---|---|---|
| Arrival at the cave | Usually 14:00–16:00 | 11:00–12:00, by design |
| Who is aboard | 10–30 strangers | Your group only |
| Time at Žanjic | 20–30 minutes | As long as you want |
| Shade | None | Deck, saloon, cabins |
| Food | Not aboard | Grill on the stern |
| Cost | €40–60 a head | €3,000 for 8 h, whole boat |
| If the sea gets up | Wet and fast | 18 metres, and it barely registers |
Group prices are the going rate on the coast in 2026, not our quote.
On the same route
The submarine tunnels
Cut into the Luštica cliffs to hide submarines inside the rock. Open to the water and approachable by boat.
Mamula
Fortress island at the mouth of the bay: Austro-Hungarian build, Italian prison camp, and a hotel today.
Žanjic
White pebble bay on the outer side of Luštica. The clearest water anywhere on this coast.
Rose
A village on the tip of the peninsula with almost nothing in it, which is the point of it.
The second arch
A quieter opening in the rock just past the Blue Cave that the tour boats do not stop at.
Fort Rose and Ribarsko Selo
The two places to eat on this side. Both take a boat alongside, both are better than they need to be.
What this route costs
Six hours reaches the cave and Žanjic. Eight adds Mamula, the tunnels and a proper lunch, and is what we would take.
| Duration | Price |
|---|---|
| 4 hours | €2,600 |
| 6 hours | €2,800 |
| 8 hours | €3,000 |
| 12 hours | €3,200 |
| 24 hours | €4,000 |
| 2–5 night | €3,400 / night |
| 7 nights | €21,000 |
Rates are for the whole yacht, captain and crew included, not per person.
7 nights
€21,000
The weekly rate works out at €3,000 a night against €3,400 on shorter voyages — €2,800 less across the seven.
- per night
- €3,000
- 7 nights
- −€2,800
Out west
Book a morning, not an afternoon
Send your dates and we will set the departure so the cave lands in the window. Two hours to reply in season.
What people usually ask
What time should you visit the Blue Cave in Montenegro?
Between 11:00 and 12:00. That is when the sun reaches the angle where light passes under the water at the entrance and lights the grotto blue from below. Earlier the sun is behind the cliff; from mid-afternoon the cave is grey and busy.
How long does it take to get to the Blue Cave from Tivat?
About two hours each way. That is why the route needs six hours as a minimum and works better as eight — four of those hours are the passage, and the rest is the cave, Žanjic and lunch.
How much does a Blue Cave boat tour cost?
On Marea, €2,800 for six hours and €3,000 for eight, for the whole yacht with captain and crew, up to 16 guests. Shared speedboats from the towns run €40–60 a head and arrive in the afternoon.
Can you swim in the Blue Cave?
Yes, and the water inside is the point of going in. It is also cold and there is boat traffic in the entrance, so we take you in, hold position, and the swimming happens on our terms rather than in a queue.
What if the weather is grey?
The cave is muted on an overcast day whatever time you arrive — the effect is sunlight, and there is no substitute for it. The captain will say so on the morning, and the route can be turned east into the bay instead, where the day works regardless.