The Tañon Strait is the largest marine protected area in the Philippines, home to a diverse array of marine life. Join us on a journey through the Tañon Strait and get to know its inhabitants.

The Tañon Strait

The Tañon Strait is a channel that separates the Philippine islands of Cebu and Negros, stretching over 160 km. Its geographical features and uniqueness make it a crucial hotspot for marine conservation and the preservation of the marine environment in the Philippines. Due to its significant ecological importance and exceptionally rich biodiversity, the Tañon Strait is designated as a marine protected area. It hosts mangrove forests along its coasts, coral reefs, and a variety of marine animals, including whales, dolphins, and sea turtles.

 With Pro Ocean, we are actively involved in and around the Tañon Strait to protect these marine creatures and preserve their habitat. Every time our team operates in the vicinity of the Tañon Strait, the experience leaves us breathless, given the stunning marine life and the importance of safeguarding this ecosystem.


Philippines, between Cebu (east) and Negros (west)


approx. 160 kilometers


Varies from 5 to 27 kilometers

Nearest Seas

Visayan Sea (north), Bohol Sea (south)

Deepwater Ports

Bais (Negros), Toledo (Cebu)

Ecological Significance

Marine protected area with rich biodiversity

The animals of the Tañon Strait

Sea turtles
Green sea turtles and olive ridley sea turtles are native to the Tañon Strait. These species are endangered and hold significant ecological importance as they graze on corals and seagrasses. Their nesting sites along the coasts contribute to the preservation of these endangered species.
Dolphins are highly intelligent marine mammals native to the Tañon Strait. Species in the region include spinner dolphins, known for their breathtaking jumps and acrobatic abilities, as well as bottlenose dolphins, recognized for their social interactions and presence in groups, known as 'pods.' Dolphins play a crucial role in the marine ecosystem and are popular tourist attractions.
The Tañon Strait is home to a variety of whale species, including the majestic sperm whale and Bryde's whale. These impressive marine inhabitants are known for their imposing sizes and annual migrations. Whales contribute to the biodiversity of the ocean and are fascinating subjects of research for scientists studying their behaviors and habits.
The Tañon Strait is home to various species of rays, including stingrays and eagle rays. These elegant marine creatures gracefully glide over the ocean floor, showcasing fascinating body structures. They are popular attractions for divers and marine researchers.
Pufferfish are fascinating marine inhabitants found in the shallow waters and coral reefs of the Tañon Strait. They possess the unique ability to inflate themselves as a defense mechanism against predators. These small yet remarkable fish are renowned for their peculiar physiology and behaviors.
The Tañon Strait is home to a variety of invertebrate marine inhabitants such as colorful starfish, sea urchins, and crabs. These invertebrates play crucial roles in the marine food web, contributing to the diversity and stability of the marine ecosystem."
The coral reefs in the Tañon Strait serve as a habitat for a wide range of fish species and marine inhabitants. These vibrant ecosystems provide shelter, food, and breeding grounds for a variety of marine life. Coral reefs are crucial for biodiversity and coastal protection, as they mitigate storm surges.
n the vicinity of the Tañon Strait, various seabird species are native, including terns, cormorants, and gulls. These birds hunt for fish, contributing to the food chain, and also serve as indicators of the health of the marine ecosystem.
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Effective Protection:

“With your donation, we can preserve the habitat of the many marine animals in the Tañon Strait, effectively and sustainably protecting them in the long term.”

Lukas Roth
Co-Founder Pro Ocean

The Mangroves of the Tañon Strait

Mangroves can be found almost everywhere in the Philippines. They are one of the most crucial ecosystems for adapting to climate change and serve as habitat for local wildlife. That’s why, with Pro Ocean, we specifically operate in mangrove forests, extracting ocean plastic and other debris. By doing so, we preserve this habitat for the countless species that rely on healthy mangroves.

For these reasons, mangroves are crucial to our ecosystem:


  • CO2 Storage: 12.3 kg per year per mangrove (equivalent to the emissions of a small car traveling 100 km)


  • 80% of the most common fish species grow in mangroves
  • Mangroves provide crucial protection against typhoons, which regularly cause significant destruction in the Philippines


Your support enables us to protect marine animals and mangroves in the Tañon Strait by collecting ocean plastic. This preserves the habitat of these creatures and reduces the risk of injury or death due to plastic. However, it’s nearly impossible to precisely measure how many are protected because, well, we’re safeguarding them from harm — kind of logical, isn’t it?

Animal partnerships

We do not consider animal partnerships to be effective or meaningful. Marine animals don’t need you as a babysitter via an app or with potentially intrusive GPS trackers on their backs. What they need are healthy habitats free from ocean plastic; the rest, they can handle quite well on their own — even if that might not feel as ‘nice’ to you! The truly important question, however, is: What is this really all about?

The Plastic in the Tañon Strait

LUnfortunately, we are increasingly encountering ocean plastic and other toxic waste in the Tañon Strait. With Pro Ocean, we protect marine animals and their habitats by retrieving ocean plastic. Our team consists primarily of conservationists who take great care to minimize harm during the collection process. Using machinery, boats, or river barriers for plastic retrieval can lead to significant bycatch, such as coconuts or other plant seeds, disrupting their natural spread and depriving animals of food in other areas. Additionally, small organisms like crabs or mussels are often unintentionally collected and killed. 

By manually collecting plastic, we not only provide fair employment opportunities for the local population but also handle these ecosystems with great care. While technology is often seen as a solution to our problems, it begins with us. At Pro Ocean, technology is primarily employed in the recycling of ocean plastic, where no animals or other living beings are affected.

“You want to preserve the Tañon Strait and its unique underwater world? Donate now to support the retrieval of ocean plastic and protect the Tañon Strait and its inhabitants.”