Top 10 popular sea life of Ishigaki

There are many ways to enjoy diving, such as enjoying the feeling of floating in the water and enjoying underwater scenery that cannot be seen from above, but there is no doubt that watching underwater sea life is one of the most exciting thing. You can see various creatures in their real life environment.

Around Ishigaki Island, you can see a wide variety of creatures, from small ones such as sea slugs and shrimps that are less than 1cm long to large manta rays that are 3-4m wide. Diving around Ishigaki Island is always full of surprises, as we often encounter some unexpected creatures.

Let's check some of the most popular sea life around Ishigaki and surrounding islands.

No.1 Manta Ray

By far Manta rays are the most popular sea life around Ishigaki Island. The area boasts one of the highest rates of manta encounters in the world, and divers from all over the world gather to see these giant creatures swim in front of, or sometimes even right above us.

There are several manta ray points on Ishigaki and surrounding islands, including Manta Scramble, Manta City, Yonara Channel, Kuroshima Island, and Panari Manta Point.

Mantas can be seen all year round. Of course, we cannot be 100% sure because we are dealing with nature, but if the timing is right, we may be able to observe several manta rays dancing wildly at the same point almost every day.

No.2 Giant Cuttlefish

The giant cuttlefish is one of the world’s largest cuttlefish, growing to over 50 cm in size, and can be observed gathering in shallow areas with dense branching corals from February to May to mate and lay eggs.

During the season, you will often see males fight each other over one female. When spawning, the female inserts her beak-like legs into the coral and lays eggs that look like ping-pong balls. They are not afraid of divers at this time of the year, so it is possible to observe them up close.

No.3 Sea turtle

Turtles can be seen year-round in places like Osaki and Kuroshima on the west side of Ishigaki Island, but they can be found relatively anywhere. Most of the turtles seen on Ishigaki Island are green turtles, but occasionally you will see hawksbill turtles.

They occasionally come to the surface to breathe, but when they are mostly under the water, napping on the rocks. They are easy to take pictures with as they are rarely bothered by divers. However, as with other species, touching turtles is strictly forbidden.

No.4 Ribbon eel

Eels have a somber and frightening image, but the ribbon eel is a lovely, brightly colored creature. Normally, they are found in their burrows, bobbing about 20 to 30 cm out from their burrows, waiting for small fish for prey. Their name comes from the fluttering, ribbon-like body shape.

The ribbon eel is initially born as a male and then undergoes a sex change. As a juvenile, it has a black body with yellow dorsal fins, snout, and chin tip, and as it grows, its body changes to a bright blue color. Later, they change sex and become females, and their body color turns yellow.

No.5 Crocodilefish

Crocodilefish is often found in the sandy areas of relatively shallow coral reefs. They are about 60 cm in length and usually stay still on the bottom of the sea, rarely swimming.

Although this fish is well camouflaged and looks unassuming at first glance, a closer look reveals a beautiful iris membrane with many branches covering its eyes. They are also popular subjects for underwater photography, as they hardly move even when divers approach them.

No.6 Longfin batfish

Longfin batfish is about 30 cm long and swims in a school in a relaxed manner. They can be found all year round in Nagura Bay.

Longfin batfish has a pointed mouth, while Tiera batfish has a yellow belly and no pointed mouth. Some schools seen in Nagura Bay have a mixture of both.

Sometimes, you will find cleaner wrasse cleaning the body of Longfin batfish. While getting cleaned, the body color of the batfish turns very dark.

No.7 Yellow boxfish

As an adult, the yellow boxfish is an aggressive-looking puffer, but as a juvenile, it is a very cute fish with a bright yellow body, black polka dots, and a small mouth.

They live alone in shallow rocky areas and are relatively easy to spot due to their bright body color. Some of the small ones are less than 1 cm in length, and they move about, hiding in crevices in the rocks to protect themselves from foreign enemies.

Although they are adorable fish, they are also known to emit toxic mucus from the surface of their skin when attacked by foreign enemies.

No.8 Sharks

There are about 490 species of sharks in the world, and only about 30 of them, including great white sharks and tiger sharks, have ever harmed humans. It is rare to encounter such dangerous sharks around Ishigaki Island.

The main species seen on Ishigaki Island is the whitetip reef shark, while guitar sharks are seen from time to time.

No.9 Nudibranch

Nudibranchs can be found in all oceans, but they are the most enjoyable creatures because of their many species and colorful appearance.

Some of the larger ones are 5-10 cm in length, but most are as small as 1-2 cm, making them difficult to find. However, if you look closely, you will see that many of them are brightly colored and shaped, and since they rarely move, they are great subjects for underwater photographs.

They can be seen all year round, but are more numerous in winter when the water temperature is cooler.

No.10 Shrimp

Shrimp are also a popular subject for underwater photography because there are so many species and they do not move around so quickly.

Some are large, such as the lobsters, which can grow up to 30 cm in length, but most are small, 2-3 cm long, and can be difficult to find.

The emperor shrimp in the photo is a parasite of sea cucumbers and nudibranchs, and it is very difficult to take a picture of it because it runs away so hard.