Take it outside, personal trainerRhys Athayde, founder ofPhantom Fitness, tells SELF.

The summertime fitness program includes free 30-minute outdoor fitness classes, goodie bags, and more.

Sign up for the next installment in Brooklyn on August 20here.

Jowan performing a mountain climber move

Katie Thompson

There are so many benefits to doing bodyweight workouts, and it doesnt have to be boring.

In the workout Athayde created below, youll hit on all those benefits.

Ready for a HIIT cardio workout thatll leave you breathless?

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Grab a mat, get outside, and get ready!

The Workout

What you need:Just your bodyweight and a yoga mat for comfort.

Then repeat on the other side.

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High Knees

The high knees is aplyometric exercisethat works your legs and your core.

Make it low impact by driving your knee up, but keeping your other foot planted on the floor.

Bicycle Crunch

Slow down this move to make your obliques really fire in this core exercise.

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Mountain Climber

The faster you move, the more of a cardio exercise this core move becomes.

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Stand with your feet shoulderwidth apart toes pointed out slightly. Clasp your hands in front of your chest. This is the…

Stand tall with your feet hipwidth apart and core engaged. Clasp your hands together in front of your chest.  Send your…

High knees

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jackknife

Bicycle crunch

Mountain Climbers