5 Open-Water Swimming Tips to Level Up in 2026 (+ An Epic Challenge Coming in June)

Paula Veloso
by Paula Veloso
4 months ago

Open-water swimming keeps growing in Portugal — and it’s easy to see why. The mix of technique, endurance, strategy, and the raw beauty of nature turns every session into an adventure.

For many athletes, 2026 will be the year to go further, whether by entering their first open-water events or tackling longer distances. And with epic challenges like the Grande Descida de Castelo de Bode, happening in June, now is the perfect time to refine your skills.

Here are five essential tips to help you gain confidence and swim better in open water.

1. Master sighting — it’s half the battle

In open water there’s no black line to follow, and staying on course is crucial.

👉 Practical tip: Every 8–12 strokes, lift your head just enough to confirm direction.
Small, efficient sighting saves time and energy.

2. Improve the efficiency of your stroke

Water resistance is unforgiving. Minor technical flaws quickly turn into wasted energy.

Focus on:

  • a clean hand entry
  • full extension
  • controlled body rotation
  • a steady rhythm

The less water you push sideways, the faster and smoother you’ll swim.

3. Train in different conditions

Nature has moods — and learning to swim in all of them is part of the process.

When safe, practise in:

  • slightly choppy water
  • varied temperatures
  • long, uninterrupted routes

The more conditions you experience, the calmer and more confident you’ll be on race day.

4. Work on pacing and endurance

The biggest difference between pool swimming and open water is your ability to hold a sustainable pace for long periods.

Try including:

  • long continuous sets
  • progressive pace sessions
  • race-simulation swims with navigation

Good pacing is what transforms “surviving the distance” into “swimming strong”.

5. Choose the right challenge to grow

If you’re looking for a big 2026 goal, the Grande Descida de Castelo de Bode is one of the most remarkable open-water events in Portugal.

🔥 Total distance: 50 km of swimming. No, you didn’t read that wrong — 50 km.
The event is split into stages, and you can choose to swim as many stages as you want, without needing to complete them all.

It’s a unique experience for swimmers who want to push limits in a safe, well-organised and breathtaking environment.

Open-water swimming offers physical, mental and technical growth. With a few training adjustments — and a clear goal in sight — 2026 can be your strongest season yet.

If you’re ready to start planning, explore all open-water events available on RaceFinder.

👉 Find your next challenge: www.racefinder.pt

More from the blog

Musings on swimming, running and riding for everyday athletes.

7 Mistakes Runners Make When Choosing a Race (and How to Avoid Them)
6 May 2026

7 Mistakes Runners Make When Choosing a Race (and How to Avoid Them)

Choosing a race should be exciting. But a lot of runners end up picking the wrong race for the wrong reasons — and only realize it when it’s too late. If you’ve ever signed up for something and thought “why did I choose this?”, this is for you. 1. Choosing a race just because it’s […]

Read More
Portugal Is One of the Best Trail Running Destinations in the World — Here’s Why
5 May 2026

Portugal Is One of the Best Trail Running Destinations in the World — Here’s Why

There’s something trail runners from across the world are discovering: Portugal is a country built for this sport. It’s not a coincidence. It’s geography, climate, and a density of trails that few European countries can match. Within a two-hour drive from Lisbon, you can be in the Serra da Estrela, the Peneda-Gerês National Park, the […]

Read More
Running Calendar in Portugal – May & June 2026: Where to Race Next
4 May 2026

Running Calendar in Portugal – May & June 2026: Where to Race Next

May and June are some of the best months to run in Portugal. Longer days, great weather, and a packed race calendar make it the perfect time to find your next challenge. Whether you’re looking for a road race, your first trail, or a more demanding endurance event, here are some of the best races […]

Read More
From road running to trail running: how to make the transition (and 6 races in Portugal to get started)
30 Apr 2026

From road running to trail running: how to make the transition (and 6 races in Portugal to get started)

If you already run regularly on the road and feel curious about trying trail running, this might be the perfect moment to take that step. The transition doesn’t need to be complicated. Many runners discover that trail running brings new motivation, improves endurance, and makes training more enjoyable and varied. Here are a few practical […]

Read More