Playa del Carmen's mangroves protect the coast, nurse reef fish and store carbon. Which species grow here, the threats they face and how to protect them.

How the clownfish and anemone symbiosis works: why it doesn't get stung, what each partner gains, sex change and the threats they face.

History of the SS Thistlegorm, sunk in 1941: what she carried, depth, required level and how to dive this Red Sea wreck.

Water absorbs colour, which is why your underwater photos and videos come out blue. Learn why editing matters, what can be recovered and what can't.

The textile industry is the second most polluting on the planet and generates 92 million tonnes of waste a year. Why we produce on demand, with recycled materials and organic cotton.

Everything about the bull shark in Playa del Carmen: why it arrives every winter, why its fearsome reputation is a myth, and how the dive is done safely and responsibly.

A dive instructor killed a critically endangered hawksbill turtle in Raja Ampat. The diving community responded with documentation and reporting. What you need to know and how to act.

More than 3,500 cetaceans live in concrete tanks across 350 marine parks worldwide. The scientific data on their suffering and the business behind the "conservation" label.

Whale shark populations have fallen 50% in 75 years. A 2025 study documents mass rule violations in Mexico. What is really happening at sighting hotspots and how to be part of the solution.