6 Must-Try Summer Activities in Japan

As summer unfolds across Japan, the country transforms into a vibrant playground filled with exciting activities and cultural events. While the season is known for its heat and humidity, it also brings a wealth of opportunities to explore Japan’s natural beauty and immerse yourself in unique adventures.
Whether it’s diving into the crystal-clear waters of Okinawa, paddling through serene rivers, or embarking on thrilling rafting expeditions, Japan offers something for everyone. From families and groups to solo travelers, these activities provide a perfect blend of relaxation, adventure, and connection with nature.
In this article, we’ve curated six must-try summer activities based on their popularity among locals and visitors. These experiences promise to make your summer in Japan truly unforgettable, creating cherished memories that will last a lifetime. So grab your sunscreen, pack your sense of adventure, and let’s dive into the best that Japan’s summer has to offer!
Best Activities for Summer in Japan
- Snorkeling
- Stand-Up Paddleboarding (SUP)
- Diving
- Canoeing/Kayaking
- Rafting
- Sea Fishing
1. Snorkeling

Japan’s vast coastline and 6,800 islands offer some of the world’s most diverse snorkeling experiences, making it a must-try summer activity. From the subtropical Okinawan islands to the serene Izu Peninsula, each location boasts its own charm.
Top Snorkeling Destinations in Japan:
- Okinawa Prefecture: Often called the "Hawaii of Japan," Okinawa offers unparalleled snorkeling experiences. Swim among vibrant coral reefs and encounter marine life such as clownfish, manta rays, and sea turtles. Popular spots include Cape Maeda on the main island and the Kerama Islands like Zamami, where you can spot sea turtles at Ama Beach.
- Amami and Ogasawara Islands: For a more remote adventure, the UNESCO-listed Ogasawara Islands, known as the "Galápagos of the Orient," promise encounters with rare species like the wrought iron butterflyfish.
- Izu Peninsula and Islands: Just a short trip from Tokyo, the Izu area is perfect for snorkelers looking for clear waters and accessible reefs.
How to Snorkel Safely:
Whether you explore independently from the beach or join guided tours, Japan caters to all skill levels. Guided tours, starting at around 4,000 yen, often include equipment rental and access to exclusive spots. Independent snorkelers should always be cautious of currents and marine life, ensuring they snorkel in pairs or groups.
Why Snorkel in Japan?
The subtropical waters of Okinawa offer year-round opportunities, with summer (May to October) being ideal. Beyond the abundant sea life, the crystal-clear waters provide an unmatched underwater experience, making snorkeling in Japan a secret treasure for marine enthusiasts.
2. Stand-Up Paddleboarding (SUP)

Stand-up paddleboarding, or SUP, is quickly becoming a favorite summer activity in Japan. Its versatility and ease make it perfect for beginners, families, and adventure seekers alike.
What Makes SUP Unique?
SUP combines relaxation and fitness, allowing participants to glide over calm lakes, serene rivers, or even ocean waves. Beginners can start with tranquil waters like lakes or downstream rivers, while seasoned paddlers can challenge ocean currents or try SUP yoga for a fun twist.
Recommended Spots for SUP in Japan:
- Lake Biwa, Shiga: Paddle across Japan's largest lake, visiting scenic spots like Shirahige Shrine's iconic torii gate rising from the water.
- Okinawa: With its turquoise waters and numerous rental services, Okinawa offers SUP tours that combine exploration and relaxation.
- Izu Peninsula: Perfect for SUP enthusiasts who want breathtaking coastal views while gliding over calm waters.
- Niyodo River, Kochi: Known for its crystal-clear "Niyodo Blue" waters, this serene river offers unforgettable SUP experiences.
Tips for a Safe and Enjoyable SUP Experience:
- Wear appropriate clothing, such as rash guards or wetsuits, to protect against sunburn and scrapes.
- Use essential gear like a paddle, a leash to keep your board nearby, and a life jacket.
- Bring sunscreen, a hat with a strap, sunglasses, and a waterproof bag to protect your belongings.
- Stay hydrated and enjoy the peaceful rhythm of paddling while soaking in stunning views.
Why SUP in Japan?
SUP is more than a water sport—it's a journey into Japan's natural beauty. From paddling along Okinawa's coastlines to cruising Lake Biwa's serene waters, the sport offers a unique way to connect with nature while staying active.
3. Diving

Japan offers an extraordinary range of diving experiences, thanks to its expansive coastline, volcanic history, and diverse marine life. Whether you’re seeking icy underwater worlds in Hokkaido or tropical adventures in Okinawa, diving in Japan promises unforgettable encounters for enthusiasts of all levels.
Top Diving Spots
- Okinawa: Known as the crown jewel of Japan's diving scene, Okinawa offers pristine coral reefs and vibrant marine life. Highlights include Ishigaki Island, famous for its manta rays at Manta Scramble, and Yonaguni Island, where divers can explore mysterious underwater ruins and spot hammerhead sharks.
- Blue Cave: Located on the main island of Okinawa, this iconic spot offers ethereal underwater vistas.
- Kerama Islands: Renowned for crystal-clear waters, these islands host an abundance of marine life, including sea turtles and tropical fish.
- Hokkaido: For a more unique experience, try ice diving during late winter near the Shiretoko Peninsula. Drift ice formations create a magical underwater environment, and you might even encounter sea angels.
- Miyakejima and Chichijima (Izu and Ogasawara Islands): These remote islands boast untouched ecosystems and stunning blue waters perfect for diving and snorkeling.
Why Dive in Japan?
- Year-Round Opportunities: Tropical waters in Okinawa allow for diving even in winter, while Hokkaido offers seasonal ice-diving adventures.
- Diverse Marine Life: Depending on the region and season, you can encounter manta rays, hammerhead sharks, sea turtles, boxfish, damselfish, and more. Seasonal migrations ensure a new experience every time.
- Unique Topography: Volcanic activity has created underwater caves, wrecks, and reefs, making Japan a paradise for adventurous divers.
For Beginners and Pros
Japan is an excellent place to start or level up your diving skills, offering PADI certification courses in English across the country. Whether you’re diving for the first time or seeking advanced certifications, spots like Tokyo, Ishigaki, and Onna have schools and guided tours to accommodate all experience levels.
4. Canoeing/Kayaking

Gliding through Japan’s serene waterways offers a refreshing escape into nature, whether you’re paddling along calm lakes or navigating rivers surrounded by lush greenery. With diverse landscapes ranging from tropical beaches to alpine lakes, canoeing and kayaking are perfect ways to experience the country’s natural beauty.
Top Canoeing & Kayaking Destinations
- Lake Kawaguchiko: Located at the base of Mt. Fuji, this tranquil lake provides stunning views of Japan’s iconic peak. Opt for a guided canoe tour or a leisurely solo paddle to soak in the serene atmosphere.
- Kushiro Marshland (Hokkaido): Paddle through this sprawling wetland and experience a rich ecosystem, complete with rare birds and untouched wilderness.
- Yakushima Island: Known for its ancient cedar forests, Yakushima also offers coastal kayaking where you can explore hidden caves and beaches.
- Okinawa: For a tropical twist, kayak along Okinawa’s pristine coastline, where crystal-clear waters reveal coral reefs and vibrant marine life.
- Lake Motosu: One of the Fuji Five Lakes, its clear waters offer mesmerizing reflections of Mt. Fuji, providing a serene yet dramatic paddling experience.
Why Choose Canoeing or Kayaking in Japan?
- Beginner-Friendly Options: Rental services and guided tours cater to all skill levels, ensuring safety and accessibility.
- Wildlife Encounters: Spot unique wildlife such as cranes, fish, and even deer along rivers and lakes.
- Eco-Tours: Many destinations offer eco-friendly guided tours, combining adventure with environmental education.
Whether you’re an adrenaline seeker or looking for a peaceful retreat, Japan’s waterways offer a paddling adventure for everyone.
5. Rafting

ting in Japan offers an unforgettable mix of adrenaline and natural beauty, making it an ideal summer activity for adventurers and families alike. Whether navigating through the calm waters or tackling challenging rapids, this group activity strengthens bonds while providing a memorable experience amidst breathtaking landscapes.
Popular Rafting Destinations
- Tone River, Gunma Prefecture: Known for its lush surroundings, the Tone River offers experiences ranging from thrilling Grade 4 rapids in spring to milder summer routes suitable for beginners and families.
- Yoshino River, Tokushima Prefecture: With varying levels of rapids, the Yoshino River provides adventure for all skill levels, including calmer waters for younger participants.
Why Choose Rafting in Japan?
- Safety First: Guided tours are led by certified professionals, ensuring a secure experience for all ages.
- Seasonal Appeal: Spring offers powerful rapids for thrill-seekers, while summer's calmer waters are perfect for beginners and children.
- Eco-Friendly Fun: Explore pristine river ecosystems while respecting nature's beauty.
Essential Tips for Rafting
- What to Wear: Opt for quick-drying synthetic materials. Avoid cotton as it retains water and becomes heavy.
- Don’t Worry About Swimming Skills: Lifejackets and safety gear are standard, so even non-swimmers can join the adventure.
- Book Early: Secure your spot, especially during peak seasons, to ensure availability.
6. Sea Fishing

For those seeking tranquility and a connection with the sea, Japan’s abundant coastline offers the perfect opportunity for sea fishing. Whether you’re an expert angler or a curious beginner, there’s something for everyone to enjoy.
Why Try Sea Fishing in Japan?
- A Rich Ecosystem: Japan's diverse marine life makes every fishing trip an exciting journey of discovery.
- Accessible for All: From guided tours for beginners to urban fishing spots in cities, Japan makes fishing easy and fun for everyone.
- Unique Culinary Experience: Many fishing tours allow you to prepare and enjoy your catch on the spot, combining adventure with delicious rewards.
Top Sea Fishing Destinations
- Kagoshima, Kyushu: A haven for both novice and experienced anglers, known for its serene waters and picturesque landscapes.
- Kochi, Shikoku: Famous for deep-sea fishing tours that take you closer to Japan's marine wonders.
- Noto Peninsula, Hokuriku: An idyllic spot for fishing enthusiasts looking for quiet, uncrowded waters.
Urban Fishing: A Convenient Alternative
Japan’s urban fishing centers make it possible to enjoy the sport without leaving the city. Venues like Zauo Restaurant allow guests to catch their dinner from indoor pools, blending fishing with culinary fun.
Tips for a Successful Fishing Trip
- Prepare the Right Gear: Guided tours often provide equipment, but check requirements in advance.
- Know the Rules: Fishing in Japan often requires a permit, which many tour operators handle for you.
- Stay Safe and Comfortable: Dress for the weather, wear sturdy shoes, and bring sunscreen for outdoor adventures.
Sea fishing in Japan is not just an activity—it’s a way to unwind and immerse yourself in the rhythm of nature. Whether casting a line along the coast or venturing into the deep sea, it promises relaxation and a sense of fulfillment.
Conclusion
Japan’s summer is a season of wonder, brimming with opportunities to embrace nature, experience adventure, and create unforgettable memories. From the tranquil waters of Lake Kawaguchiko to the thrill of rafting down the Tone River, each activity showcases the country’s diverse landscapes and cultural richness.
Whether you’re snorkeling alongside sea turtles, gliding across serene lakes on a paddleboard, or savoring the satisfaction of catching and cooking your own fish, these experiences go beyond recreation—they’re a way to connect with Japan’s natural and cultural heritage.
No matter your age, skill level, or interests, there’s an adventure waiting for you this summer in Japan. So step outside, breathe in the fresh air, and make the most of the season by exploring these incredible activities. Here’s to a summer filled with joy, adventure, and lasting memories in the Land of the Rising Sun!