Is Surfing a Good Workout? What a Week in the Water Actually Does to Your Body

Is surfing a good workout? Let me answer it the way I would over breakfast, before your first session: yes, and not in the gentle “well, any movement counts” way. Surfing is one of the most complete workouts I know of, and the best part is that it never once feels like exercise. You’re too busy having fun to notice your body is working harder than it has in months.

Most of our guests figure this out by day three, usually when they realize they’ve slept like a stone every night and eaten like a teenager.

What surfing actually works

People assume surfing is an arm thing. It isn’t. It’s a whole-body thing, which is why it’s such an efficient workout:

• Paddling is a serious upper-body and back session. Shoulders, lats, arms, and the muscles between your shoulder blades that a desk quietly switches off. It’s also where most of the cardio lives.
• The pop-up, going from lying to standing in one motion, is a burst of core, chest, and triceps. You’ll do it dozens of times a session. It’s a burpee you’re excited to repeat.
• Riding and balancing lights up your legs, hips, and deep core stabilizers, the small muscles ordinary gym work rarely reaches. This is why people say their midsection feels different after a week.
• Staying in the ocean, reading the water, holding position, getting back up after a wipeout, is low-grade cardio that runs for hours without you clock-watching the way you would on a treadmill.

Add it up and you’ve trained strength, cardio, balance, and mobility in one session, in warm water, without a single rep you had to force yourself through.

Does surfing burn calories? Yes

A surf session burns real energy. A few hundred calories an hour is a reasonable estimate for an active session, more when the paddling is heavy. But the calorie number is the least interesting part. What matters is the kind of fitness it builds: functional, balanced, full-body, the sort that makes you move better in everything else, not just look like you go to the gym.

And it’s sustainable in a way most workouts aren’t, because you’ll want to do it again tomorrow. Nobody has ever had to talk themselves into a second surf.

The part nobody puts in the fitness bracket

The biggest change we watch happen over a week isn’t in anyone’s arms. It’s in their head. There’s something about the focus surfing demands, the fact that you cannot think about your inbox while a wave is coming, that resets people. They arrive wound tight and leave loose. We’ve written more about that side of it, the mental health benefits of surfing as an adult, because it’s real and it’s a big part of why guests come back.

You don’t need to be fit to start (that’s backwards)

The most common thing I hear is “I should get in shape first, then come learn to surf.” It’s backwards. Surfing gets you in shape. About 60% of our guests have never surfed before, and plenty arrive convinced they’re too out of shape or too old for it. They’re standing up by day two.

You don’t need to prepare your body for this. But if you like to arrive ready, a few simple surf-fitness exercises beforehand won’t hurt, and we’ve mapped those out too.

The short version

Surfing is a genuine full-body workout dressed up as the best part of your day. Strength, cardio, balance, and a mental reset, all at once, in 78°F water, and you’ll be sad when the session ends rather than relieved. That combination is rare, and it’s a big part of why a surf week leaves people feeling better than any spa ever has.

If that’s the kind of “workout vacation” you’ve been looking for, our adult surf camp in Costa Rica is built for exactly that. Small groups, patient coaching, a week designed around the water. Come find out what your body remembers how to do.

Kjeld co-founded Kalon Surf in Dominical with his wife Silene. He still surfs most mornings the tide allows. His cardio, as he puts it, is entirely accidental.