
We have an UltraSwim 33.3 package for all budgets and styles. All packages include an epic 33.3km of swimming across four days, accommodation, early morning breakfasts, world class safety and race management, refuel stops and nutrition and so much more. Our recommended ULTRA+ package includes airport transfers, post swim massage and top level accommodation (70% or more choose this option). Dial down your budget with the ULTRA option, or step up to our full concierge ULTRA++. Whatever you choose we will look after you from the day you enter so you get to focus on the swimming.
Prices and packages

UltraSwim 33.3 is an Epic Adventure Swim Race™ but so much more than just a race. It covers 33.3km, the historic English Channel distance, split across five to seven point to point open water swims (we hate laps) over four days in warmer water locations (a half Channel 17km option exists). So far held in Croatia, Switzerland, Greece, Spain, Montenegro and the Caribbean, based at luxury spa hotels, with world class safety cover, premium support, a complete preparation programme and a diverse community that ranges from 14 to 74 years old, usually more women than men. From competitive Masters swimmers, triathletes and swimrunners to leisure and wild swimmers simply aiming to complete the distance. From a required pace of just 2km/h, any determined swimmer can do it. Come in a group or alone, everyone leaves with new friends for life. Award winning, four day race and support packages start from 1,800 euros (€750 for our 2 day Compact format).

Choosing your event and package: first you select your sporting format to suit your ambition, then the support and accommodation package that suits your style and budget. Here is what it looks like in practice.
Add-ons are available at most venues. For example, the F3 (Family, Friends and Fans) supporter and activity package, extra nights before and after the event, single occupancy, pre-event preparation camps, and the ULTIMATE non-stop ultramarathon option at one of our events each year.

The big one. Join an exclusive club of 33.3ers and take on Captain Webb's full 33.3km English Channel distance, spread across four days and five to seven point to point swims.

The Half Channel (around 17km over four days) stepping stone towards a full 33.3. Every swim is capped at 5km, so it is a gentler way in. Not available at every venue, and the same price as the CLASSIC.

Are you preparing for a big ultra-marathon swim? The ULTIMATE is the full distance in one go, the ideal English Channel preparation. Available at one venue per year (2027 Switzerland).

Dive into the essentials. This is our standard package, without the frills of ULTRA+, yet still a fully inclusive premium experience.

Our recommended package. The ‘swim like a pro’ experience the UltraSwim 33.3 concept is based on. ULTRA+[5*] further upgrades your accommodation.

The VIP UltraSwim 33.3 experience. Everything is taken care of with our luxury concierge service with all you can imagine included.
Nine short questions, about two minutes of your time. We read your submission, then share information with you to help you select the right event for you.
Choose the package that fits your needs - and then the Edition that fits you.
ALL PACKAGES INCLUDE:
SUPER VALUE ULTRA package at our new COMPACT format in Barcelona. It includes two nights hotel, breakfasts, lunch and two amazing swims with all the usual UltraSwim 33.3 quality support, from €750.
Everything you need to know before you commit to your first Epic Adventure Swim Race. Still unsure? Ask the Captain Webb chatbot.
The full distance is 33.3km, the width of the English Channel, spread across four days in warm open water. Each swim might be from a 2km untimed section up to a 10-11km marathon point to point swim. And everything in between according to the weather, venue and other constraints. Half Channel distance (33.3/2 BUILD) also available in most venues with maximum single swim distance of 5km, and an overall objective of around 17km - this BUILD format is a non-competitive format without rankings.
If you can swim at a pace of 2km per hour, you are fast enough to swim an UltraSwim 33.3. We have a network of Affiliate coaches and training resources to help you with your training. Usually someone swimming at 2km/h in open water is able to swim a 2.5km time trial in a pool in around an hour.
That's fine! Most first time 33.3'ers haven't. We have training programmes to support you and a range of affiliate coaches you can get in touch with if you want additional support. A big majority of our first time entries have never swum more than a 4km or so single open water swim - and they pretty well all nail the full 33.3! At every event there is also usually around 65% for whom our marathon swim on day 3 is their longest ever swim (and that after 2 days of swimming too!).
No. We choose warm water locations so you can focus on the swim, not the shivering! That said there is a range of temperatures across our venues from 20C to 27C (and of course variations according to the weather).
Most swimmers arrive alone and leave with new friends for life. You will find your tribe quickly, and bond like you've never done so on single swim events. Of course there are also groups of friends, or club groups - but coming alone you will not feel alone for long!
Packages vary. Every package includes the basics: Hotel (minimum 4*) 4 nights twin shared accommodation (package dependant) including early breakfasts.
Pre-event training plan and training support channel.
Preparation webinars.
Finish line refuel lunches (excluding drinks).
Guided stretching sessions post race.
Upcycled Participation and Finisher Droplet.
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.
ULTRA + / ++ packages offer a lot more including top level hotel rooms or villas (according to venue), post-swim massages, priority physio support, pre-event video analysis, dedicated airport transfers, bigger and better swimmers pack, and lots more! A vast majority of our swimmers choose ULTRA+ packages.
World class safety and event management cover every metre, with kayakers, boats and medics on the water.
First of all us - dedicated experience open water swimmers who are going to answer your every concern - directly or via our popular Training Support whatsapp group, our webinars and our Affiliate Coaches network.
We also include a free 16 week training programme as well as personalised plans available through Swim Smooth Guru and other Affiliates. A network of Affiliate coaches, physios and nutritionists support you all the way. A community to train alongside - and you'll find our past swimmers the first to be there supporting you with your questions and concerns.
Swimmers from 14 to 76 years of age, with a median age of 50+, from all over the world. Slightly more women than men at most events. Swimmers with different ambitions, experience and goals. The racers, the cruisers, those just wanted to nail the challenge. The nervous ones, the confident ones. The swimmers that only came to the sport recently, and lifelong Master swimmers. Triathletes, Swim Runners, Wild swimmers, Leiisure swimmers. Pool swimmers new to the open water. Swim Trek holiday swimmers taking on a goal-oriented challenge for the first time. Ex-olympians re-finding their love of the sport. The total cross-section and from more than 50 countries of the world.
That's completely fine, and there is no shame in that. The group energy carries you through, and our team supports you at every point, whatever you need. If you don't make one day, you get up and nail the next one - for sure, you will no longer get the coveted Finisher droplet (this time), but you will still go home feeling so good about your achievement, and maybe you'll be back again to nail the Finish in full next time. You won't regret trying that is for sure.
Choose your event, pick the package that fits, and let us take care of the rest. Your place on the start line is waiting.
Book now