When you’re in Hawaii, one of the best activities is to go snorkeling and observe the wonders of the sea. While the colorful, tropical fish and stunning coral are certainly sights to behold, the green sea turtles are one of the most mesmerizing creatures you’ll encounter underwater. Affectionately known throughout the islands as “Honu,” these large, elegant swimmers are so fascinating! If you’ve ever wanted to learn about more them before you swim with turtles, read on.

Surprising Facts About Green Sea Turtles

1. Green Underneath

Ever wonder why they’re called “green sea turtles” when their shells are usually olive, brown, grey, or black? The green actually refers to the color of their body fat! It can be attributed to algae being their primary source of food.

2. Old Age

When you swim with turtles, you could be meeting one that’s 80 to 100 years old! In fact, the species as a whole has been around for millions of years.

3. Massive & Heavy

An adult Honu can grow up to 5 feet, with the carapace of their shell measuring about 40 inches in length. As for their weight, they’re usually around 200 to 500 lbs., but they can get as heavy as 700 lbs.!

4. Surprisingly Speedy When Spooked

If you want to swim with turtles for a while, always exercise caution and try not to scare them. Generally, they swim at a pace that’s about 1.5 to 2 mph; however, when frightened, they can swim as fast as 20 to 35 mph!

5. Endangered Species

Sadly, due to their main predators being sharks, as well as factors like poaching, egg harvesting, incidental and accidental captures by fisheries, habitat destruction, and pollution, green sea turtles are currently classified as an endangered species.

6. Always Return Home

When it comes time for them to lay their eggs, female Honu will make their nest at the same beach on which they were born. This is known as natal homing.

Whether you’re a local or a tourist, if you’re in Oahu and want to swim with turtles, Ko Olina Ocean Adventures can make your dreams come true! Their snorkeling tours will give you the chance to see these majestic and friendly creatures up close and personal. Want to swim with dolphins as well? They offer that too! Call them today at (808) 396-2068 to book one of these as your next exciting adventure! Curious to learn more about it first? If you’re interested in this or any other of their sailing options, you can find additional information on their website. Photo from Ko Olina Ocean Adventures’ SNUBA diving tour.