When does the ocean open on Kohama Island? We also detail the activities that can be enjoyed on Kohama Island!
Table of Contents
When does the ocean open on Kohama Island?

Kohama Island" is located almost in the center of the Yaeyama Islands, the same as Ishigaki and Iriomote Islands. Covering the four sides of the islandMore than 400 typescorals, and various marine activities can be enjoyed.
Usually on Kohama Island,Around the middle of MarchThe opening of the sea takes place at a very early date (some beaches opened on March 7 in 2025!). (Some beaches opened on March 7 in 2025!)
You can already enjoy swimming in the sea when the mainland is still in the early spring.

One drawback is its location in the most southwestern part of the country,Typhoon PathThe point is that it is easy to
Especially from the middle of July to around the end of September, many typhoons pass through the area, so be sure to check the weather forecast in advance of your trip!
◆If you want to know about the ocean opening and the best season on Kohama Island.
◆To see what to expect and how to get there when traveling
◆Looking for recommended beaches and activities on the island?
↓ About the best season to travel to Kohama Island
For more information, click here ↓
What is the best season for Kohama Island? Introducing the advantages and disadvantages of different times of the year!Kohama Island, which became instantly famous as the setting for NHK's morning drama series, is located almost in the middle of the Yaeyama Islands. It takes about 30 minutes by ferry from Ishigaki Island! We introduce the best season for Kohama Island!
↓ Travel to Kohama Island on a rainy day
For more information, click here ↓
What are the characteristics of rain on Kohama Island? Introducing activities that can be enjoyed even in the rain!Contents1 How to spend a rainy day on Kohama Island? 2 The weather on Kohama Island is changeable, so be careful3 The event rate is high even on rainy days! Kohama Island Activity Introduction 3.1 Explore the beautiful ocean! Kohama Island Snorkeling 3.2 Go deeper! Into the mysterious sea [...].
Click here to see the ranking of popular tours in Kohama Island.
Five recommended beaches on Kohama Island

The charm of Kohama Island lies not only in its activities, but also in the fact that you can relax and enjoy the scenery.
If you visit the islandAbsolutely can't miss it.Here are five beaches with different personalities.
Tumal Beach

The beach is easily accessible within walking distance from the harbor and features shallow waters and gentle waves.
The white sandy beach stretches endlessly, and even if you do not go into the ocean, you can fully enjoy the tropical atmosphere just by strolling along the beach.
Access: 20-minute walk or 5-minute drive from Obama Port
Kohama Island - Tumal Beach What is Tumar Beach? It is a beach that can be easily reached on foot from Obama Port. It is recommended to spend a relaxing time looking at the ocean as you leave the island! Because the beach is shallow, you can enjoy playing in the water rather than swimming or snorkeling [...].
Kubazaki Coast

Located at the west end of the island, with a view of Iriomote Island in front of you.Excellent locationIt is a spot where you can see beautiful sunsets at dusk. It is known for its beautiful sunsets at dusk, making it the perfect place to enjoy the quiet island time.
Access: 1 hr. 5 min. walk or 10 min. by car from Obama Port
Kohama Island - Hosozaki Coast About Hosozaki Beach Hosozaki Beach is a beach spot on Kohama Island at the tip of a cape that juts out long and narrow from the western tip of the island. From the beach, the shadow of Iriomote Island can be seen across Yonara Channel. Yonara Channel is also known as "Manta Way", where huge manta rays circle [...].
Misumuribushi Beach

On the beach in one of the best resort facilities in the country,crystal-clear seaand full facilities.
There is an area that can be used by non-guests, with parasols, a café, and a reception desk for marine leisure activities,Comfortable all day longYou can spend your time!
Access: Approx. 50 minutes on foot or 15 minutes by car from Obama Port
Minamikazehana Beach (Utah Beach)

Minamikazehana Beach (Utah Beach) is located in the southeast of the island,Kohama blueThis is a hole-in-the-wall long beach where the gradation of the
Morning sun rising from the horizonIt is also a great spot for those who want to relax and listen to only the sound of the waves in the silence.
Access: 40 minutes on foot or 10 minutes by car from Obama Port
Kohama Island - Minamikazehana Beach (Utah Beach) Minamikazehana Beach (Utah Beach) is located in the south of Kohama Island. It is more like a tidal flat than a beach, and at low tide it dries up to become a rocky beach. The waves and tides are calm because of the bay-like topography of the ocean, but on the other hand, the water is shallow, so the water [...].
Resonare Kohama Island Beach

The beach adjacent to the resort hotel called Risonare Kohama Island isLuxurious atmosphereIt is a drifting beach with a distant view of "Phantom Island" in front.
A perfect place to enjoy the star-filled sky at night.Astronomical observation pointIt is also known as a "luxury island" and is the perfect place to spend luxurious island time♪.
Access: 1 hour walk or 15 minutes by car from Obama Port
Recommended Activities on Kohama Island

Kohama Island to tourists visiting the island.Sea and ActivitiesMost of them are intended to
Let's check out the many marine activities you can enjoy on Kohama Island.
Click here to see the ranking of popular tours in Kohama Island.
I want to go there at least once from Kohama Island!
360 Degree Spectacular View★Land Tour on the Island

Phantom Island (Hamashima) is located about 10 minutes from Kohama Island,Mysterious island that appears only at low tideIt is.
Surrounded by 360° of crystal clear water, this isolated white sand island has attracted attention as a location for numerous media shoots due to its beauty!
You don't have to swim! You are free to relax, take pictures, relax, and enjoy your time♪
↓Click here for [Popular] Landing Tour on the Phantom Island.
↓arrow (mark or symbol) sunset timeI also recommend landing on ↓.
About the Phantom Island Landing Tour
For more information, click here.
snorkeling

Snorkeling is a standard activity on Kohama Island, where you can enjoy the beautiful ocean with your whole body!
Kohama Island is surrounded byLake ShihshihshanKohama Island is surrounded by a large coral reef area, and the ocean floor of Kohama Island is a world of coral reefs. It is popular as one of the best snorkeling spots.

There is no need to obtain advanced licenses or other equipment.rentalFrom what can be done, even beginners caneasilyThe ease with which one can participate is also attractive.
Experienced and newcomers alike are welcome!
↓Click here for recommended snorkeling tours.
Half a day tour of Kohama Island, April-September only☆Select from more than 20 locations carefully selected by the captain and go to the best spot on the day! Two-point snorkeling at Ishinishi lagoon, one of the largest coral reefs in Japan, where you can meet colorful fish and sea turtles (No.612)開始時間1:30 p.m. - 4:30 p.m.所要時間Approx. 3 hours11,000 yen
↓Learn more about snorkeling at Kohama Island
Kohama Island Snorkeling Tour Enjoy snorkeling in one of Japan's largest coral reefs and outstandingly clear waters! We will take you to the recommended points depending on the weather and season. (22 in total) アクティビティの詳細を見る
diving

Diving, a full-scale exploration of the sea, involves carrying a tank for breathing underwater in addition to a wetsuit and other equipment, and wearing a regulator and other gear.
In the sea of Kohama Island, there are variousunique to a tropical countryYou can meet the creatures of the

In the Disney movie Finding Nemo.anemone fishand other tropical fish.sea turtleManta rays are also popular for their graceful swimming in the sea!
Have a special experience of diving in Kohama Island and get in touch with sea creatures.
↓Click here for recommended diving tours.
Kohama Island/One day】Request OK◎Let's enjoy the luxury of a private charter! Boat Charter Plan! Available for graduation trips, company trips, and groups☆(No.662)開始時間Negotiable所要時間Approx. 7 hours16,000 yen↓More about Kohama Island Experience Diving
Kohama Island Experience Diving Tour Enjoy diving in the clear waters of Japan's largest coral reef area around Kohama Island! No license is required, so even first-timers can easily participate without a license. (6 in total) アクティビティの詳細を見る
SUP

SUP, which involves standing on a board and balancing on the water while paddling through the water, has seen a dramatic increase in popularity on Kohama Island in recent years!
At first glance, it may seem difficult to maintain balance at sea, but thanks to the use of large boards, it is possible to achieve a balance that is contrary to the impression one might have.The difficulty level is not so high.

The silhouette standing on the sea is very photogenic, and has recently become popular on Instagram and other social networking sites.
In the lush sea known as Kohama blue,being popular on social networksTake lots of pictures that you can!
↓Click here for recommended SUP tours.
Kohama Island / Limited to 1 group / 90 minutes] The only SUP tour with drone aerial photography in Kohama Island! The safe and secure instructor with 13 years of experience as a guide will guide you! (No.637)開始時間9:00-15:00
*The experience lasts approximately 1.5 hours.所要時間Approximately 1.5 hours8,500 yen →directional marker or indicator7,500suffix for names of swords, armour, musical instruments, etc.
↓Learn more about Kohama Island SUP
Kohama Island SUP Experience Tour SUP in the crystal clear water is an exquisite activity that allows you to feel the time flowing by in a relaxed manner! (21 total) アクティビティの詳細を見る
Anyone can easily get on board!
Kayak (Canoe)

From children to the elderlyanyoneKayaking is a popular activity that is easy to get involved in!
Structurally, kayaks are very difficult to capsize, and they are not difficult to maneuver, so even inexperienced paddlers can paddle with confidence.
Some of the kayaks used in the activities can accommodate two people,With small childrenYou can also enjoy the ride together... ♪
↓Click here for recommended canoe (kayak) tours.
Kohama Island/3 hours] Sea kayak & snorkeling tour available only from April to October! The sparkling coral reefs are sure to impress you♪ Hotel pick-up and drop-off included (No.615)開始時間8:00-11:00 / 13:30-16:30所要時間Approx. 3 hours10,500 yen
↓Kohama Island Canoeing (Kayak)
Kohama Island Canoe (Kayak) Tour This is a classic activity on Kohama Island! In summer, you can enjoy the ocean by sea kayak, and in winter, you can enjoy canoeing that will make you feel like you are exploring the mangroves or heading to an uninhabited island. (9 in total) アクティビティの詳細を見る
Check it out before you go to Kohama Island!
Things to keep in mind to enjoy your trip

Kohama Island is full of comfort and fun, but only a remote tropical island can offerimportant pointThere are also
Let's check out the key points to keep in mind to avoid making a mistake on your trip.
(1) Take measures against strong sunlight!

The first thing to keep in mind is thatIntense sunlightIt is.
During regular sightseeing and during activities, be sure tosunblockLet's do the following!
The sunlight from the white sand beaches is also very strong, so it is recommended to bring sunglasses to protect your eyes.
(2) Be careful of squalls (sudden heavy rain)

Kohama Island issubtropical climateand is characterized by squall-like weather, with sudden, strong rains that stop after a short period of time.
It is difficult to predict the sky conditions, and suddenlyunexpected rainIn many cases, it has been rained on!
Check the weather forecast carefully and don't let a folding umbrella, raincoat, or other items get in the way of your carry-on luggage.rain gearIt is a good idea to carry a
↓ About activities that can be enjoyed even in the rain
For more information, click here ↓
What are the characteristics of rain on Kohama Island? Introducing activities that can be enjoyed even in the rain!Contents1 How to spend a rainy day on Kohama Island? 2 The weather on Kohama Island is changeable, so be careful3 The event rate is high even on rainy days! Kohama Island Activity Introduction 3.1 Explore the beautiful ocean! Kohama Island Snorkeling 3.2 Go deeper! Into the mysterious sea [...].
(3) Advance reservations are required for Kohama Island ferry tickets!

There is no airport on Kohama Island. From Ishigaki Island to Kohama IslandYou need to take a ferry to get there.So, be sure to check the operation status and hours of operation!
Also, please note that the ferry ticket purchase counter will be very crowded,advance reservationis the new normal.

If you purchase in advance, you can go to the counter on the day of purchase.No need to wait in line.You can avoid the crowds and don't have to worry about losing your ticket!
Click here for Kohama Island Ferry Service Status & Timetable
↓ Learn more about Kohama Island Ferry
Ishigaki Island - Kohama Island Ferry Information [Timetables, Fares, and Web Reservations! Also, a thorough explanation of the attractions of Kohama Island sightseeing!Contents1 It takes about 25 minutes from Ishigaki Island by ferry! What kind of island is Kohama Island (Kohama Island)? 2 How to get to Kohama Island2.1 Kohama Island Ferry Price List3 Ferry tickets must be purchased in advance! 4 Advantages of purchasing ferry tickets in advance4.1 Ferry [...]
Kohama Island Sea Opening
Frequently Asked Questions (FAQ)
It is usually held in early to mid March. Although it may vary from year to year,
Much earlier than the mainland, visitors can enjoy swimming and marine activities from early spring.
On sunny days, you can swim adequately, but in March, the water temperature can feel cooler on some days.
Wetsuits are comfortable for snorkeling and diving.
March to June is recommended for enjoying the ocean, and April to June for balancing sightseeing and weather.
From July onward, the area is susceptible to typhoons, so it is important to check the weather in advance.
summary

We have introduced the ocean opening of Kohama Island with a focus on activities in the ocean!
The island was chosen as the model for "Churasan," one of Okinawa's most popular dramas, so there are some attractions that could not be introduced in this article alone.Lots more to come.Yes, there is.
If you are interested, we hope you will visit us!
↓Click here to read the article.
What is the best season for Kohama Island? Introducing the advantages and disadvantages of different times of the year!Kohama Island, which became instantly famous as the setting for NHK's morning drama series, is located almost in the middle of the Yaeyama Islands. It takes about 30 minutes by ferry from Ishigaki Island! We introduce the best season for Kohama Island!
A thorough explanation of the convenience store and supermarket situation on Kohama Island! About Shopping on Kohama IslandContents1 Are there convenience stores and supermarkets on Kohama Island? 2 How to shop on Kohama Island2.1 Maemoto Shoten2.2 Haimurubushi Shop2.3 Kubayaa3 Buy what you need on Ishigaki Island! Recommended Ac [...].

























