There's a one-kilometer run followed by a strenuous ski-inspired workout. Then another one-k run followed by an exhausting sled push. After that, the run is repeated with a new, demanding physical challenge at the end. In total, the HYROX challenge is eight kilometers of running separated by eight grueling workouts.

It's an intense physical challenge that some may see as a long-term goal. Some may even see it as punishment. But for Chantalle Luberto, it's a frequent opportunity to connect with her peers.

"The community that these challenges have created is amazing. Everyone is so supportive of each other, cheering each other on. I've made many friends through these events."

A petite blonde with soulful brown eyes, Chantalle may not strike you as someone pursuing high-intensity training as a hobby. But after listening to her speak passionately about friendly competition and the never-ending goal to beat your last score, it's easy to see why this model has made a commitment to a strict training regimen, running at least 40 miles a week as she gets ready for the next challenge. And on days like today, she raises the stakes for herself, taking her Defender down to the beach to work out on more difficult sandy terrain.

"When you model, you find yourself at the gym a lot. And just 'working out' wasn't really motivating for me. But the process, the training, the opportunity to be competitive with myself — it really scratches an itch."

"Downtime" isn't really a phrase Chantalle is familiar with. Between modeling gigs and training days, she looks for new ways to be of service. Growing up in New Jersey, Chantalle says she was always the kid who cared for stray kittens and even once, a raccoon. That drive never left her, and weekend volunteering soon turned full-time when she and her brother started an animal-rescue nonprofit. The organization has rescued dogs and cats from across the country and even as far as Colombia. 

"Sometimes pets get sick or are aggressive and their owners can't care for them. We get them training, the care they need. It can be heartbreaking, but it's also rewarding." She adds, "That's how I got my boys," referring to her two Australian cattle dogs, King and Theo.

Chantalle says her unwavering partner in all these pursuits has been her Defender 110. Tough enough to transport her to off-road hiking trails, spacious enough to carry rescue supplies, training gear and two enthusiastic dogs, the vehicle has become a physical manifestation of her determination. "I feel badass in it. It's athletic, rugged but can also be serious and elegant. It makes you feel like you can do both too."

Around midday, when the sun is at its harshest, Chantalle is winding down. She shakes the sand off her workout gear and places it into the back of the Defender. She smiles and explains how, even though the workout today was tough, pushing her limits can be satisfying. "It's unfair to compare yourself to others. Everyone's goal is different. But you have to work hard to get where you want."