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Catch - your digital swim coach - is the Official Training Partner for Great North Swim. Here’s your guide to training, kit, fuelling & race day.
By Rebecca Wetten, Co-Founder & Head Coach at Catch
The 5k is the half marathon of swimming - a serious milestone. It’s the perfect bridge into long-distance swimming, & for experienced swimmers it’s where endurance meets speed. With the right prep, you’ll come out of Windermere buzzing.
Held on Lake Windermere, the Great North Swim is the UK’s biggest open water event - part race, part festival, all community. Thousands swim across six distances with excellent safety cover, great crowd energy & stunning scenery.
The 5k sits in the sweet spot - long enough to test you, short enough to enjoy. We’ll be there too, so come say hi at the Catch stand.
June brings early-season excitement, crisp water & big smiles. Prepare well & you’ll enjoy it even more. Many Catch swimmers start for the goal but stay for the process - the calm, confidence & joy that comes from swimming with purpose.
A 5k is long enough for doubts to show up. That’s normal. The aim isn’t to silence your brain but to stop it running the show. Before race day, ask yourself:
- Why does this challenge matter to me?
- What excites me about it?
- What makes me nervous?
Write your worries down so you recognise them if they crop up mid-swim. Your body can do more than your brain admits. A simple mantra helps in tougher patches, like “This is hard - but I do hard things.”
The fastest way to become a more efficient swimmer is to focus on technique, such as:
- Head & body position: head low, body flat, hips high.
- Breathing: breathe often, quickly & smoothly, & trickle breathe when your face is in the water.
- Catch & power: use both your hand & forearm to pull the water effectively on each stroke. This is where you get your power.
On Catch, technique is split into small weekly focusses so you build big gains without overwhelm.
You don’t need to live at the pool. Two to four focussed swims a week is plenty if you’re consistent. As you find a rhythm, aim for roughly 4-8km total per week, depending on your starting point.
Include a mix of:
- Technique swims: slower, mindful, one skill at a time.
- Speed & threshold swims: short bursts a touch faster than race pace.
- Endurance swims: longer, steady efforts to build your engine.
Every 4-5 weeks, schedule a de-load week cutting volume by about a third. These keep your body feeling fresh & strong.
From late April, get outside when you can. If you feel the cold, use a thicker wetsuit or neoprene accessories to start with. Practise:
- Sighting: lift eyes just enough to spot your target. Check out this short video where we break down sighting technique: How to sight in open water
- Breathing rhythm: keep it regular even in chop.
- Drafting: just behind or to the side of another swimmer can save up to 25% effort. Practise it first.
Even a few open water sessions will boost your calm & confidence on the day.
Give yourself three ways to win:
- Bronze: achievable on any day.
- Silver: a result that you'd be delighted with - & a little surprised.
- Gold: a stretch target that would make you grin ear-to-ear at the finish.
Open water pace varies with conditions. Treat target times as flexible. Focus on feeling good, smooth & strong.
Windermere’s cool water means you’ll sweat less than on land. Dehydration is unlikely, but start hydrated. Sip an electrolyte drink the night before & again a few hours before your swim. If you expect to be out there for more than 2 hours, you might want a tow float with a small bottle.
Carbohydrates are your friend. Eat a carb-rich meal the night before & a light carb breakfast on race morning. For many swimmers, a small gel or snack around halfway works well. Stash it in your wetsuit sleeve or tow float. Practise your snacks in training so your stomach knows what’s coming.
Clear for cloudy days, mirrored for sun. Anti-fog before you start - baby shampoo works, or a dab of saliva. Tighten slightly or put your hat on top of the straps if you’re worried about them slipping.
Wetsuits are optional above 15°C. If you go skins (no wetsuit), a tow float is needed. Wetsuits add warmth & buoyancy. To find the perfect wetsuit for you, see Catch’s wetsuit guide.
Neoprene gloves or boots can help in colder water, but they add drag. Decide where you want the balance between comfort & speed.
Rest isn’t lazy - it’s where fitness consolidates. Sleep well, eat well, & take proper days off when needed.
About a week before race day, taper. Cut volume by roughly half, keep a few short, sharp swims, & slightly increase carbs so you feel like a coiled spring on the start line.
- Pack your kit early
- Sip electrolytes
- Eat familiar food
- Check the course map
- Take the warm-up dip to settle in
- Start at the edge if you like more space
- Don’t sprint the first 200m
- Sight every 6-10 strokes & find your rhythm
- Remember your “why”
If panic hits, calm your breathing, focus on technique, count ten strokes, sight, repeat. You’ll settle quickly.
You did it - 5k in Windermere is a huge achievement.
- Warm up: dry kit, warm layers, hot drink.
- Refuel: carb snack within 30 minutes.
- Reflect: note what worked & what you’ll tweak.
- Rest: take a few easy days.
- Plan what’s next: build on your momentum.
As the Official Training Partner, Catch has plans & technique courses built specifically for the Great North Swim.
With Catch Gold, you’ll get a personalised 5k plan, structured video lessons & direct coaching support from me - helping you train smarter, swim stronger & enjoy the journey.
Use code GNS26 for £5 off your first 3 months on Catch Gold.
The Dock2Dock swim offers a unique opportunity to experience open water swimming in the heart of London’s Royal Docks. With towering historical cranes lining the water and the iconic skyline of Canary Wharf and the O2 Arena in the background, this event combines the thrill of urban swimming with the challenge of long-distance racing.
Find out moreThe 2 Mile Henley Swim is a challenging open water event set in the River Thames at Temple Island Meadows during the Henley Swim Festival. Swimmers can compete in either the Suits category, wearing wetsuits for added buoyancy and warmth, or the Skins category, following traditional open water swimming rules without a wetsuit. This scenic and rewarding swim is ideal for experienced swimmers looking to test their endurance in the iconic Henley course.
Find out moreThe Bantham Swoosh is a renowned 6-kilometer open water swim held annually in the Avon (Aune) estuary in Devon. The event starts in the picturesque village of Aveton Gifford and concludes at the stunning Bantham Beach. Swimmers experience the unique thrill of the "swoosh," where the ebbing tide funnels through a narrow section of the river, propelling participants at speeds up to four times their usual swimming pace. This exhilarating natural current, which can run at 8 knots, offers a distinctive and enjoyable challenge for swimmers.
Find out moreWith Catch Free, you’ll get access to the online swim community with session ideas, mini courses, a swim content hub & local swim squad.
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