Japan is a dream destination for underwater adventurers.
From vibrant coral reefs to unique marine life, the country offers an array of stunning diving and snorkelling spots.
These locations provide unforgettable experiences for both beginners and seasoned enthusiasts.
Where can you explore some of the best underwater sights in Japan?
Let’s look at some of Japan’s best places to go diving and snorkelling.
🤿 Are you planning your trip to Japan to go diving or snorkelling? I have you covered.
1) Miyako Island
Miyako Island, located about 300 kilometres southwest of Okinawa Island, is a top spot for diving and snorkelling.
Its clear waters and beautiful coral reefs make it a paradise for underwater fans.
You’ll find a variety of marine life here, including colourful fish, vibrant coral, and even sea turtles.
Yonaha Beach is particularly popular for its beauty and excellent facilities.
Many tours offer snorkelling and diving equipment rentals, so you don’t need to worry about bringing your own gear.
Plus, guided tours help you explore the best sites safely and easily.
2) Okinawa’s Kerama Islands
The Kerama Islands are a dream destination for divers and snorkelers.
Located about 40 km west of Okinawa’s main island, these islands are a national park with crystal-clear waters.
You can see over 200 species of coral and many kinds of sea turtles.
Feel the thrill of swimming alongside hawksbills, greens, and loggerheads. It’s an unforgettable experience.
The marine life is rich and colourful, making every dive unique.
Whether you’re a beginner or an experienced diver, the Kerama Islands offer spots that suit all levels.
3) Yonaguni Monument
Yonaguni Monument, discovered in 1986, is an incredible site for diving off the coast of Yonaguni Island.
It consists of massive rocks that have sparked debates about whether they’re natural or artificial.
When you dive here, you can explore these mysterious underwater formations, giving you a sense of adventure and awe.
In addition to the monument, Yonaguni’s waters are home to diverse marine life.
You might spot hammerhead sharks, vibrant schools of fish, and stunning coral reefs.
The underwater visibility is usually excellent, making taking in the breathtaking views easier.
The currents can be strong, so it’s ideal for experienced divers.
If you’re up for the challenge, diving at the Yonaguni Monument offers a unique and memorable experience in Japan.
4) Izu Peninsula
The Izu Peninsula is a fantastic spot for diving and snorkelling.
It’s near Tokyo, which makes it easy to reach.
Osezaki is one of the top dive sites with beautiful soft corals and diverse marine life.
Izu Ocean Park also offers great diving experiences.
This spot has been popular since the 1960s and provides an excellent underwater adventure.
If you love snorkelling, Hirizo Beach is a must-visit.
You can only get there by ferry from Nakagi Port.
The clear waters and tropical fish will leave you amazed.
5) Kume Island
Kume Island is a gem located 100 km west of Naha in Okinawa. It’s known for its beautiful diving spots and clear waters.
One of the best diving locations on Kume Island is Imazuni.
Here, you can explore amazing underwater landscapes with holes, drop-offs, and crevasses.
You might even see arrow barracuda and dogtooth tuna swimming by.
The island also offers excellent snorkelling experiences.
Late spring to early autumn is the perfect time to visit, as the weather is warm and sunny, and the waters are calm and clear.
6) Shiretoko Peninsula
If you’re looking for an adventure, the Shiretoko Peninsula in Hokkaido is a must-visit.
This UNESCO World Heritage Site offers incredible diving and snorkelling spots.
The clear waters reveal vibrant marine life in the summer, making it perfect for snorkelling.
You can spot everything from colourful fish to unique sea plants.
During winter, the area becomes famous for ice diving. Imagine diving under floating ice in the Okhotsk Sea.
It’s an experience you won’t forget.
Explore the stunning sea caves and waterfalls that pour directly into the ocean.
The diverse underwater scenery adds to the magic of this place.
If you’re lucky, you might even see dolphins or brown bears along the coast.
Be sure to plan, though, as this spot gets pretty busy, especially on weekends and holidays.
7) Ogasawara Islands
The Ogasawara Islands are a hidden gem for diving and snorkelling enthusiasts.
Known for its clear waters, you can enjoy 30 to 50 metres visibility.
Chichijima is the main island. It is a popular spot with many marine life and beautiful underwater landscapes.
If you want to see humpback whales, December to April is the best time.
During these months, the waters around the islands are filled with these majestic creatures.
Futami Bay, located between Chichijima and Hahajima, is perfect for those who prefer a more relaxed dive.
8) Hateruma Island
Hateruma Island is Japan’s southernmost inhabited island.
It is a hidden paradise for diving and snorkelling.
The island’s clear blue waters and vibrant marine life make it a must-visit spot for ocean lovers like you.
One of the island’s standout features is Nishihama Beach.
Here, you can enjoy snorkelling and seeing schools of colourful subtropical fish.
The fine white sands add to the magical experience.
Another reason to visit Hateruma is the starry night sky.
With minimal light pollution, it’s an excellent place for stargazing.
You can even spot the Southern Cross constellation from late April to mid-June.
To get to Hateruma Island, you can take a ferry from Ishigaki Island.
Once there, you’ll discover why it’s considered one of the best spots for snorkelling in Japan.
9) Ishigaki Island
Ishigaki Island is a top spot for diving and snorkelling. It’s part of the stunning Yaeyama Islands, about 400 km southwest of Okinawa.
You can experience amazing underwater life, with vibrant coral reefs and colourful fish swimming around you.
Kabira Bay is perfect for spotting manta rays, especially between summer and early autumn.
There are several great beaches for snorkelling where you can see fish like sea goldies and butterflyfishes.
Diving shops offer activities like banana boats and diving with turtles in nearby Kuroshima.
10) Mikurajima Island
Mikurajima Island is about 200 km south of Tokyo.
Known for its dramatic coastlines and beautiful forests, it’s a fantastic place for diving and snorkelling.
The island’s main attraction is swimming with wild dolphins.
Tour guides ensure your encounters are safe and respectful.
You can snorkel or do a free dive to see the dolphins up close.
The water around Mikurajima is often rough, so follow your guide’s instructions carefully.
The island has no beaches, only cliffs and rocky edges, making it unique and adventurous.
Mikurajima’s pristine old-growth forests and hiking trails add to the island’s charm when you’re not in the water.
It offers a complete nature experience for anyone visiting.
