Snorkeling in Istria: Brijuni Islands with St. Jerolim

Swim and snorkel off St. Jerolim island amid untouched Adriatic waters

A panoramic boat tour of Brijuni National Park's 14 islands with optional snorkeling and swimming at St. Jerolim Island, departing from Fazana. The ship Kristina carries you past wild nature and historic landmarks, then anchors at St. Jerolim for 2–4 hours (depending on your departure time) so you can enter the water, explore the monastery ruins, or eat at the beach bar. A live guide speaks English, German or Croatian throughout. Complimentary cold drinks are served aboard.

Step-by-step itinerary

Brijuni panoramic tour and island visit

• Board ship Kristina in Fazana
• Enjoy panoramic tour of 14 islands
• Arrive at St. Jerolim Island
• Optional free time on St. Jerolim Island
• Snorkel and swim in clear waters
• Visit monastery remains and beach bar
• Return to ship and depart island

The experience

You board the ship Kristina in Fazana and spend roughly an hour cruising the Brijuni archipelago (all 14 islands visible from the water), while the crew brings cold drinks to your seat. The boat stops only at St. Jerolim Island, part of Brijuni National Park, where you can stay between 2 and 4 hours depending on which departure time you booked (the 12:30 departure, for example, limits your island time to about 2 hours). The island entrance fee is separate: €5 for adults, €3 for children 7–18, free for children 6 and under.

St. Jerolim itself is small and undeveloped: no crowds, no resorts. The water is clear enough to snorkel without a guide, and fish move through the shallows. If you don't want to enter the water, you can walk to the monastery ruins for views across the park, or sit at the beach bar and order lunch. The last boat back leaves around 16:00, so the island time is finite but yours to spend as you choose.

The tour runs 5 hours total from start to finish. A live guide narrates in English, German or Croatian, so you hear the history and ecology of the park as you move between islands. Bring a swimsuit, sunscreen and a towel. The boat has no changing facilities.

What’s included

• Complimentary cold drinks aboard ship Kristina.
• panoramic cruise past all 14 islands of Brijuni National Park.
• live guide commentary in English, German or Croatian.
• 2–4 hours on St. Jerolim Island with free time to snorkel, swim, explore the monastery ruins or eat at the beach bar.

Before you book

Days and timesNext departure: 24 May 2027

Book up to1h before

AgesAdult (13 and older) · Child (4 to 12 years) · Infant (under 4): free

GroupUp to 50

Live guideEnglish, German and Croatian

Meeting point and pickupNo hotel pickup: you go to the meeting point. Ends back at the starting point.

Cancellation and refundsFree cancellation up to 24 h before the start. After that, no refund.It may be canceled due to bad weather or if the minimum number of travelers isn't reached. If that happens, you're offered another date or a refund.

Prices and times updated 24 days ago

Good to know

Low physical effortWheelchair accessibleAccessible transportStroller-friendlyPets welcomePublic transport nearby

Operated by Brijuni Boat Tours

Is this one for you?Choose an earlier departure time if you want 3–4 hours on St. Jerolim for unhurried snorkeling and island exploration. The 12:30 boat limits your island stay to about 2 hours, which still allows snorkeling but leaves less time to linger.

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Top questions

What languages is the tour guided in?

Live guide in English, German and Croatian.

Can children come?

Yes. Ticket types: Child (4 to 12 years); Infant (under 4): free.

What happens if it rains?

It may be canceled due to bad weather. If that happens, you're offered another date or a refund. Free cancellation up to 24 h before the start.

How long do I actually spend in the water at St. Jerolim?

St. Jerolim Island time runs 2–4 hours depending on your departure time. The 12:30 boat gives you roughly 2 hours on the island, while earlier departures allow 3–4 hours. You choose how much of that time to spend snorkeling versus resting or eating at the beach bar.

What is St. Jerolim Island like when I arrive?

St. Jerolim is a small, undeveloped islet within Brijuni National Park with crystal-clear Adriatic water, fish visible in the shallows, and the remains of a monastery on higher ground. A beach bar serves food and drinks, and the island has no crowds or commercial development.

Do I need snorkeling gear, or is it provided?

The tour does not include snorkeling equipment. You bring your own mask, fins and snorkel, or rent them separately before boarding. The water is shallow and clear enough to snorkel without a guide.