The Marianas Trench is located just northeast of Indonesia.
The world’s deepest point in the oceans is the Challenger Deep which is found within the Marianas Trench. The Marianas Trench is a depression (deep cracks) in the floor of the western Pacific Ocean. Marianas Trench is formed (as other ocean trenches) as a result of the oceanic plate being pushed against a continental plate whereby causing the oceanic plate to pushed downward making deep fissure. Its location is east of the Mariana Islands and is 1,554 miles long and averages 44 miles wide (see diagrams below). The Marianas Trench depth is 36,200 feet (11,033 m or 11.03 km).
I went swimming in shark infested waters – and lived to tell about it!
Swimming in Shark Infested Waters – SCUBA Diving with sharks, no cage
We went SCUBA diving in the Semporna Archipelago, and sharks were everywhere! This was only my second time seeing whitetip reef sharks while SCUBA diving so I was still getting comfortable with the idea of it. Eventually I got really excited to see (and photograph sharks – we saw a dozens of sharks per dive!
I’ve received tons of questions about diving with sharks, so I’ll tell you about it here. I’ll also attempt to dispel some myths about sharks.
Are sharks dangerous??
This is the most common question I get when people hear my excitement about swimming with sharks. The short answer: No. Sharks are not inherently dangerous to people.
We’ve all seen the movie Jaws, but not all sharks are the same. The overwhelming majority of sharks are not dangerous (unless provoked). These were reef sharks – people commonly refer to them as “vegetarian”* sharks!
They’re just as scared of us, as we’re the same size as them.
Are reef sharks dangerous?
Whitetip Reef sharks are curious. They’ll swim right up to you, and fortunately aren’t typically aggressive unless provoked.
Are dangerous sharks in Borneo?
When you dive safely and don’t provoke sharks, it’s safe. The places where I went are safe when diving safely. Sipadan and the Semporna Archipelago also have a reputation for having Hammer Head Sharks, but the divers I met said they hadn’t seen them in a long time.
[Note – unlike what my dive master told me, whitetip reef sharks are not actually “vegetarians” – their diet is explained below]
Why are they called Whitetip Reef Sharks?
Whitetip Reef Sharks get their name from their fins, both of which are white tipped. Whitetip Reef Sharks can be found swimming alongside us and the other fish. They also like to hang out near the ocean floor and in caves.
“Wait, you went diving with sharks and weren’t even protected in a cage??”
Do you need a cage to dive in “shark infested waters” ?
Nope! I live dangerously. Seriously, with a few precautions, not all sharks are aggressive and a cage isn’t necessary for Borneo and in many other regions of the world, assuming you’re not deliberately doing stupid things (listed below). If you treat them with respect and are smart, they’re not the vicious predators you see in movies like “Jaws.”
“I would do anything … but I won’t do that” –
Are all shark species safe to go diving without a cage?
No! I wouldn’t seek out Bull Sharks or Tiger Sharks, or the Great White, the “most feared predator on earth,” to dive with. There are people that do (including some in the comments below), and SCUBA diving tourism is souring, but it’s all about comfort level and education.
Here’s what I do NOT recommend:
You don’t want to deliberately confuse a shark as to their food. I wouldn’t dive with a group that deliberately throws dead fish and blood in the water (called “chum” – more on “chumming” from wikipedia here), and I don’t recommend you do either.
I wouldn’t go spear fishing, as they’ll try to steal catches and maybe get curious. Some say they also hear the sound of a spear gun and respond in seconds.
I also wouldn’t recommend that you make physical contact with a shark, tease a shark, or otherwise mess with their environment.
All three of these are messing with the shark’s environment, and leads to accidents. Why increase your risk and make it dangerous?
Perhaps I’ll feel differently over time. I doubt it As of now this is where my comfort level is. I was just swimming and photographing in their world, and loving it!
How close did you get?
What do whitetip reef sharks eat?
If they don’t eat people…what do whitetip reef sharks eat?
Whitetip Sharks hunt at night, and like to eat octopus, crabs, and lobsters, and hang out on the ocean floor near potential meals. They have a blunt snout so when they’re getting into caves, they can still snatch some lunch. They also mix into their diet some bony fish, including eels, squirrelfishes, snappers, surgeonfishes, triggerfish, damselfishes, parrotfishes, and goatfishes. Yum!
Even after seeing dozens of reef sharks in the Semporna Archipelago, it was still exciting!
Reef Sharks come in 3 varieties –
Whitetip Reef Shark, Triaenodon obesus (sometimes written as White Tipped Reef Sharks or White Tip Reef Shark)
Baby Whitetip Reef Sharks are 20-24 inches, after a 5-month pregnancy.
Are Whitetip Reef Sharks an endangered species?
No, but their conservation status is “near threatened.” Fisherman hunt them for their fins, to make “shark fin soup.”
Where were these shark infested waters photos from?
Sipadan is easily my favorite SCUBA dive site yet! Sipadan is located in the Semporna Archipelago in Borneo. I was momentarily terrified when I found myself eye-to-eye with a shark during my SCUBA Diving open water test, in BaliIndonesia, but by the time I got to Malaysian Borneo I was seeking them out. I found plenty! The Semporna Archipelago is known for having tons of whitetip reef sharks and it didn’t disappoint.
Discovery Channel’s Shark Week typically premieres in August in the United States – check listings.