The three ways onto the water from Kotor
All leave from Kotor harbour (Park Slobode 1) with the same operator. The islet church entrance (€5) is never included.
Blue Cave + islet
Three hours: the Blue Cave with a 20-minute swim, Mamula fortress from the boat and 20 minutes on Our Lady of the Rocks. English-speaking guide, Spanish audio by QR. 158 reviews, 9/10.
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Perast and the islet, 90 minutes
No cave, no swim: boat to the islet of Our Lady of the Rocks, half an hour on foot in Perast and back. Leaves at 16:00. The short, cheap option. 18 reviews, 8.8/10.
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Private boat
Price per boat, not per person. Two routes: Blue Cave with snorkelling, Mamula and the wartime submarine tunnel (3 h), or the islet and Perast (2 h). At your time. 23 reviews, 8.9/10.
BOOK →What hardly anyone explains: the swim in the Blue Cave is 20 minutes, and with a rough sea the boat stays outside and you swim beside the cave, not inside. It is the complaint that recurs most in the reviews, and it depends on the swell, not the operator. How to choose the time and day, and the weather in Kotor before you book.
From Dubrovnik
Full day with the border, the Verige ferry, Perast and guided Kotor. €65, without the boat to the islet.
How the day goes →The bay from the water
Perast’s two islets, Mamula, the Blue Cave and the submarine tunnel: what each one is.
Learn more →Live weather
In bad weather the trips are cancelled (you get a refund). Check the wind first.
Check the wind →Prices, times and conditions read on the operator’s Civitatis listings on 6 September 2026. Free cancellation up to 24 hours before (Blue Cave) or 36 hours before (Perast and private boat).