Training on vacation: keep your fitness without ruining your summer

You waited all year for it. And now that it's here, your training plan is falling apart: shifting schedules, endless meals, heat, a family that didn't sign up for your long runs. Good news: you have far less to lose than you think — as long as you know what to keep.

What time off actually does to your body

We fantasize "losing fitness" as a collapse. Detraining studies tell a different story.

In other words: the one-to-two-week break that makes you feel guilty on your beach towel is invisible in the data — and it recharges everything training wears down all year, including your head. 53% of French people actually say they do MORE sport in summer (Odoxa/RTL). The vacation problem isn't doing too little: it's doing it badly.

The four classic traps

1. Copy-pasting your regular program. Same volume, same sessions, on a vacation rhythm: you stack the fatigue of packed days on top of training. Classic outcome: overload, injury, and a family that counts your absences.
2. Dropping everything with guilt. Stopping isn't the problem (see the numbers above). Guilt is: it makes you come back too hard, too soon. If you stop, stop cleanly — and ramp back up gradually.
3. Trying to "catch up." You don't make up missed weeks by training in every free second. Training is consistency, not an average.
4. Ignoring the heat. It's the #1 barrier to summer activity (59% of French people, OpinionWay 2024) — and a real risk factor at noon in August. I wrote a whole article on training in the heat: the same rules apply on vacation, only worse, because you sleep less well.

The maintenance formula: 30-50% volume, one intense session

To maintain your level for several weeks, the research is surprisingly clear: 30 to 50% of your usual volume is enough, as long as you keep at least one intense session per week. Intensity protects your adaptations, not mileage.

And look at what French people are already doing on vacation: hiking (64%), swimming (50%), cycling (50%). Zone 2 endurance disguised as tourism. A hike with elevation, 30 minutes swimming to a buoy, a family bike ride: your maintenance volume is almost done without touching your running shoes.

If you want to do more

The opposite exists too — 23% of French people go on vacation FOR sport (Olbia Conseil, 2024). Surf camp, a hut-to-hut hiking week, a mountain cycling block: great, but treat it as a training block, not a vacation. Prep your body beforehand (the strength work in the weeks before makes the difference), ramp the load progressively on site, and keep one or two truly off days. Showing up cooked to a camp turns it into a survival week.

Finding where to train, anywhere

The real obstacle on vacation is often just logistics: you don't know the area. My tools:

• Strava Heatmap — the global heat map: where locals run is where it's good.
• Komoot — build a hiking/cycling route (coast, forest, elevation) in 5 minutes.
• AllTrails — rated and reviewed routes, quality varies by region but priceless abroad.
• Places2Swim — worldwide pool directory, dated interface but effective.
• Vivez Sport — the public French platform listing activities near your vacation spot.

Training without stealing from your family

This is the real summer negotiation. What works: the session before breakfast (30 extra minutes at wake-up is enough), the kids' nap for short sessions, and above all stop framing sport against family — 42% of French people want to do sport WITH their family (OpinionWay 2024). Chasing your kids on the beach, a tennis doubles match, a splash fight in the water: that's activity, and that's memories. Last thing: a sightseeing day at 18,000 steps IS a session. Don't stack a "just to be sure" easy run on top.