Overview
Bridging the gap in distance
The jump from 10k to 33.3km is a jump in endurance, not speed. Spread across four days, the distance breaks down into achievable daily swims. This spoke shows how the format makes the total distance manageable.
You can swim 10k. Here is how to bridge the gap to the full English Channel distance of 33.3km.
The jump from 10k to 33.3km is a jump in endurance, not speed. Spread across four days, the 33.3km English Channel distance breaks into achievable daily swims, so a committed 10k swimmer can bridge the gap with a structured plan and full support.
UltraSwim 33.3 is an Epic Adventure Swim Race™ covering 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, all inclusive packages start from €1,575 CHECK (€750 for our 2 day Compact format)
The jump from 10k to 33.3km is a jump in endurance, not speed. Spread across four days, the distance breaks down into achievable daily swims. This spoke shows how the format makes the total distance manageable.
As a single number 33.3km can feel daunting. Divided across four days it becomes a series of swims well within reach of a swimmer who can already complete 10k. The format, warm water and safety cover remove the barriers so the focus stays on steady endurance.
The iconic English Channel distance spread over 5 - 7 swims. Choose the full 33.3 CLASSIC, or the 33.3 / 2 BUILD 'Half Channel' which caps each swim at 5km. Life-changing for many.
Swiss precision event organisation. Boat and kayak safety cover provided on every swim. Daily briefings on conditions, route and pace. Experienced and dedicated team
Whether you come on your own or with a club, you will find your tribe, and make new lifelong bonds over 4 days of highs and lows as you reach for that 33.3 Finisher droplet
All iconic, each with their own challenges and beauty - Croatia, Switzerland, Greece, Montenegro, Spain and the Caribbean. From May to December and designed to fit your season and time constraints.
Explore the preparation programme, coaching and swim camps that get you to the start line ready.
Explore training33.3km sounds daunting as one number. Across four days it becomes a series of swims well within reach of a committed 10k swimmer.
Swimmers explain how the four day format turned a big number into an achievable goal.
Yes, with preparation. The distance is spread across four days, and a structured build up takes you from 10k to the full 33.3km over a training block.
Most swimmers build over several months, gradually increasing volume and adding consecutive day swims. The preparation programme sets out the progression.
Sustaining an even effort over longer swims and recovering between days. Both are trainable, and warm water makes them far more manageable.
Yes. Every swim has boat and kayak cover, daily briefings and world class event management.