CROATIA [Hvar]

Iconic open water swimming venue of Hvar, Croatia

Islands Edition · Stari Grad to Hvar, wild and historic

Swim around the western end of the Croatian island of Hvar off the Dalmatian coast. Five to seven swims across four days. Two channel crossings of 2.3km each. The full 33.3 CLASSIC, or the 33.3 / 2 BUILD which caps every swim at 5km.

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SWITZERLAND for Léman hope

from CHF 1,500

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RACECHECK|5.0
★★★★★

Based on 200+ reviews from swimmers around the world

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Stari Grad, Hvar

CROATIA [Hvar]

19–21°C (66-70°F)

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Places are limited and held on a first come basis. The booking team will confirm your spot and answer any questions.

common Questions

What is included in your Croatia entry?

Race entry across all four days, four nights at the host hotel with breakfast and refuel lunch, daily boat and kayak safety cover, transfers from Split airport on the official window, finisher medal and timing chip, evening briefings, and access to the prep camp slot. Group dinners on Saturday and Monday.

Where will you swim in Croatia?

The course traces between Stari Grad and Hvar Town, taking in hidden bays and offshore islands across the Dalmatian coast. Two channel crossings of 2.3km each are scheduled. The final day finishes in the centre of Hvar Town, where non racing partners can join the last 100 metres if they wish.

Who is Croatia right for?

Swimmers wanting the full 33.3km Channel distance at the lowest entry price, or completing the 33.3 / 2 BUILD with no swim over 5km.

UltraSwim 33.3 #17 Barcelona, Cami de Ronda coastal path on the Costa BravaUltraSwim 33.3 #17 Barcelona, Cami de Ronda coastal path on the Costa Brava

UNIQUE TO this event

The Adriatic off Croatia is among the clearest water in the Mediterranean. The swimming route starts from the 12th century village of Stari Grad, and then passes between the Pakleni islands with no visible industry, no noise, and water that feels unlike anywhere else. Hvar is one of the most celebrated Croatian islands — and the final day swim is a fitting finish in the ancient and fun village of Hvar Town.

prep camp

A two day preparation camp runs immediately before the event, covering course discovery, open water skills and a series of seminars. Places are limited.

UltraSwim 33.3 #10 Montenegro, preparation camp training swim

Race formats

what formats are available at this venue?

33.3km

CLASSIC

The full English Channel distance spread across 4 days with 6 swims. The original. The one that started it all. Swims can vary from 2km to a marathon day 3 of 10-11km.

33.3 /2

BUILD

This 'Half Channel' non-competitive format aims to cover c. 17km over the same 4 days as the CLASSIC, but with all swims less than 5km. A great stepping stone to the full.

Packages and Pricing

4 package levels - but one world class delivery

Every package includes a full premium swim race experience over 4 days - the service package choice defines the extra support options like post-swim sports massage, the accommodation rating and room size, the airport transfers and many other extras.

ALL PACKAGES INCLUDE:

  • Hotel 4 nights twin shared accommodation including early breakfasts.
  • Pre-event training plan, training support channel and webinars
  • Finish line refuel lunches (excluding drinks)
  • Guided stretching sessions post race
  • Upcycled  Participation and Finisher's medal
  • Swimmer’s Pack (towel, water bottle)
  • Tow float and drybag loan (refundable €50 euro cash deposit to pay on collection)
  • Professional photos and video content
  • Group of 4 discount (4th swimmer half price) book at same time, including two new swimmers
  • Optional partner (F3, Family, Friends, Fans) supporter activity package, and accommodation package
ULTRA
Everything you need without the frills of the + packages
Everything listed above is included in the ULTRA package. It is important to note that you will be responsible for your own airport transfers except for Montenegro and Milos where they are exceptionally included.
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ULTRA+[4*]
Recommended
4* Hotel for four nights (shared accommodation, single occupancy available as an extra)

Dedicated airport transfers from/to airport to the event, except in Switzerland where there are fantastic train connections from Geneva and Zurich which make it easy for you to get to Lausanne.

Personal 1:1 Video Analysis pre-event (you must provide the video)

Swimmer’s Pack (towel or poncho, water bottle, woolly / sun hat, dry bag)

Post race sports massage (days 1-3)

Top sports injury physio on-site injury assessment (fee if further services required)

Single occupancy option guaranteed
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ULTRA+[5*]
All inclusive
All the benefits of the 4* Package

5* Hotel for four nights (single occupancy included in price)

Direct access to boutique hotels and upgrade options.
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ULTRA++
All inclusive
For the VIP experience, the ULTRA++ package, upgrades everything to a premium level.
‍
This comprehensive package includes everything from specialist coaching to luxury hotel accommodation, concierge service and dedicated support. It includes 5 nights of accommodation instead of 4 and includes a space on the F3 package for your partner.
‍
Email us for a personal consultation
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Event Format

HOW to get there?

←

Where is it?

  • Race entry across all four days
  • Four nights at the host hotel
  • Breakfast and lunch every day
  • Daily boat and kayak safety cover
  • Transfers from Split airport on the official window
  • Finisher medal and timing chip
  • Evening briefings and nightly route reveals
  • Access to the preparation camp slot
  • Group dinners on Saturday and Monday

Getting there

Fly into Split. On the official arrival window we move the group from Split airport to Stari Grad by private transfer and ferry, then back again on the final day. Most swimmers arrive a day early to settle in and shake off the travel. Its also possible to fly to Dubrovnik and take the fast catamarans (c.3 hours) up to Hvar Town directly.

Nearby

  • Hvar Town old quarter and harbour
  • Stari Grad plain, a UNESCO world heritage site
  • The Pakleni islands
  • Quiet Dalmatian coves along the route
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events

Choose your EVENT

Each running of this location has its own dates, price and booking. Pick the edition that suits you.

Closed

#12

The 'Islands' Edition

COMPLETED

No dates currently available for this event

19 - 21C

CLASSIC, BUILD

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Event Format

HOW DOES THE EVENT WORK?

Every event follows the same simple rhythm. A supported swim each morning, an easy afternoon to rest and explore, and evenings together with the group. It is this shape, repeated across four days, that turns 33.3km into something you build towards rather than survive.

Download the full event packEXPLORE THE FORMAT ›
←

Start early, swim strong

Every edition follows the same simple rhythm over a long weekend. Early starts for the best weather and safety, a post swim refuel, recovery massage*, and return to the hotels for an easy afternoon to rest or explore, and evenings together cementing new friendships.

Build distance, build confidence

As the event progresses, distances build from 4km, with a marathon (10km+) swim on day 3 weather permitting - and what feels like a celebration c.4km final day course.  You'll be tired some days, you'll feel like superman on others - in the moments of doubt on or off the water, the group energy will carry you forward.

More than just a swim

The overall experience will mark you positively, and for many even life-changing and you'll give your very best whether you finish every leg or not. Our aim is to send you home a better swimmer, person or both.

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* ULTRA + / ++ packages only

All our events so far have won awards. See reviews from other swimmers.

Gold Award 2025 RaceCheckGold Award 2024 RaceCheckGold Award 2023 RaceCheckTop Rated 2024 RaceCheck

Our events

Seven events across six countries, all built around the iconic 33.3km English Channel distance.

GREECE [MILOS]

Swim the volcanic coastline of Milos in the Cyclades over four days of warm Aegean water. Dramatic sea caves, hidden coves and some of the clearest water in the series, in early June when the island is at its best.

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Switzerland for léman hope

A 33.3km 4-day event including a crossing of Lake Geneva, from France to Switzerland, in one of the world's most iconic freshwater settings. Warm, flat water and a dramatic Alpine backdrop.

Discover event

Greece [Skopelos]

Swim the island-hopping route through the Northern Sporades, one of the most beautiful corners of the Aegean, with warm late-summer water and golden light that makes every session memorable.

Discover event

Montenegro [Bay of Kotor]

The founders' favourite. The Bay of Kotor combines warm, sheltered water with a UNESCO World Heritage setting that stops swimmers mid-stroke. Warm swimming well into October.

Discover event

Barcelona [Costa Brava]

Pioneer edition

The first UltraSwim 33.3 along the Costa Brava, one of Europe's most dramatic coastlines. Warm Mediterranean water into late autumn and a host city that needs no introduction.

Discover event

Caribbean [Nevis]

Pioneer edition

The first UltraSwim 33.3 in the western hemisphere. Turquoise Caribbean water, a historic volcanic island, and a sunrise-to-sunset rhythm that will stay with you for life.

Discover event

Croatia [Hvar]

Completed 2026

Three sold out years swimming from Stari Grad to Hvar Town through secret bays and clear Adriatic water. The Islands Edition pauses for 2027.

Discover event