MATHIAS GULDBERG

“I want to get the kids in the water as soon as possible. No more talking—it's time for action. I want to put masks on them so they can see what’s going on beneath the surface. We’re working on that, and it’s definitely going to happen.”

Two years ago, Mathias, a marine biologist from Denmark, shared his journey with us when he first relocated to Mexico to work on marine conservation. His passion and dedication haven’t wavered, but his focus has broadened. In this follow-up, Mathias reflects on how his work has evolved, the challenges he's faced, and the deep impact he's had on the local community.

How has your focus shifted since we last spoke two years ago?

Mathias explains that his original focus on coral research took a new turn. "It was mostly focused on corals at first, but very quickly I realized that plastic was a huge issue down here." While coral health remained a priority, the amount of plastic pollution became impossible to ignore. "At the start, I just got so frustrated seeing plastic everywhere—on the beaches, in the water."

This frustration turned into action, as Mathias made beach cleanups part of his daily routine. "People join because they see you picking it up, and they want to help. That’s how change starts. Now, we’ve got a regular crew coming out, and it feels great to see the community rallying together."

Why did you choose to base yourself in Bacalar?

"Bacalar kind of chose me," Mathias says with a smile. Bacalar, known for its stunning lagoon and ancient stromatolites, is an ecosystem in need of protection. "This place is paradise, but it’s super fragile."

Mathias’ connection to the unique beauty of Bacalar is what solidified his commitment. "I realized that this lagoon and these stromatolites—this whole place—are special, but under so much pressure from tourism. It’s a delicate balance, and I felt I had to do something."

How are you getting the local community involved in conservation?

One of the most rewarding aspects of Mathias' time in Bacalar has been seeing the shift in how the local community, especially the children, relates to the water. "When I first got here, a lot of kids were really afraid of the water," he recalls. "Now, they’re begging to go snorkeling and diving with me."

His efforts have not only fostered a love for the lagoon among the children but have also led to a significant change in their attitudes. "They went from never wanting to be in the water, to suddenly wanting to explore everything that’s beneath the surface. It’s amazing to see them so eager and excited."

This growing enthusiasm isn't limited to the younger generation. "The adults are starting to get involved too," Mathias says. "They’re joining the beach cleanups, and they’re starting to ask questions about how they can help protect the lagoon. We even have plans for an Eco-Festival to bring everyone together and celebrate our local environment."

What are the biggest challenges you’ve faced working in Bacalar?

Mathias admits there are still big challenges facing Bacalar, especially as tourism continues to grow. "The pressure from tourism and development is increasing rapidly," he says. "The rise in boats, pollution, and agricultural runoff is starting to affect the lagoon’s health. It can be really overwhelming at times."

Finding a balance between economic growth and environmental preservation is difficult, but Mathias believes the key lies in promoting sustainable tourism. "We need people to come here and see the beauty, but we need them to respect it too. If they don’t, this place could be damaged beyond repair. It's about educating visitors to be stewards of the environment."

Despite the challenges, Mathias remains hopeful. "It’s tough sometimes, but I genuinely believe we can still make a difference if we act now. Every small effort counts, and together, we can protect this paradise."

What keeps you motivated to continue your work here?

For Mathias, these moments are a reminder of the importance of his work. "Every dive, every cleanup, it all serves as a reminder of why I’m here. There’s so much beauty in the lagoon, and I want it to still be here for the next generation."

His work isn’t just about scientific research or large-scale conservation projects, but about encouraging others to take action as well. "Anyone can help," Mathias says. "It’s not just about what I do; it’s about what everyone can do. Small actions like picking up trash or teaching kids about the environment make a huge difference."

As Mathias continues his journey in Bacalar, his story is an inspiring example of how one person’s passion can spark change in a community. Two years after he first arrived, his work has left an indelible mark on both the environment and the people who call this beautiful place home.

Mathias' story is continuing.…

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