Why Japan Sea to Summit by Rat Race Is a Must-Do Adventure

If you're looking for a once-in-a-lifetime adventure that blends cultural immersion, physical challenge, and epic landscapes, Rat Race's Japan Sea to Summit should be top of your list. From the ocean edge to the sacred summit of Mount Fuji, this is more than a challenge, it’s a journey across the soul of Japan.

Here’s why Japan Sea to Summit is a bucket-list event for any serious adventurer.

1. Traverse Japan from Coast to Crater

There’s something deeply powerful about starting at the sea and finishing on the summit of a volcano, especially when that volcano is Mount Fuji, Japan’s iconic peak.

You’ll begin your journey at Suruga Bay, dip your toes in the Pacific Ocean, and travel overland under your own steam to the summit of Fuji at 3,776m, Japan’s highest point.

It's a bold and beautiful point-to-point, sea-to-summit adventure.

2. Two Summits for the Price of One

Japan Sea to Summit is a 4 day adventure consisting of a acclimatisation hike up Mount Asama. This gives you the chance to 'road test' your kit, nutrition plan and get your body used to the altitude you will experience on Mount Fuji

3. Experience the “Other” Side of Japan

Forget neon lights and bullet trains. This route takes you through rural Japan, where you'll pass ancient temples, bamboo groves and steaming hot springs. You’ll stay in traditional inns, eat local food, and meet locals in small towns far from the tourist trail.

It’s an intimate experience of authentic Japan, rarely seen by outsiders.

4. A Spiritual Element Few Adventures Can Offer

Climbing Mount Fuji is more than a physical feat, it’s a spiritual pilgrimage for many in Japan. Known as “Fuji-san,” the mountain holds deep cultural significance and has been revered for centuries.

Ending your adventure on this sacred summit gives the event a soulful, reflective tone. It's the kind of finish that makes you feel changed, not just challenged.

5. Achievable But Epic

Yes, Japan Sea to Summit is hard mountain to conquer in a day, but it’s designed for real-world adventurers, not just elite athletes. With support, pit stops, and an expert crew, you’ll have everything you need to push your limits safely.

Rat Race events strike the perfect balance between epic and achievable and Japan is no different.

6. The Food. The People. The Culture.

Between the adventure legs, you’ll refuel with incredible Japanese cuisine, stay in atmospheric local accommodations, and soak up the rich traditions of the regions you pass through.

Think: sushi, miso, yakitori, fresh mountain water, and warm hospitality from people who are excited to welcome you.

7. All the Logistics? Done for You.

One of the biggest barriers to an international multi-day event is logistics. But with Rat Race, it's all taken care of:

• Airport transfers

• Luggage handling

• Accommodations

• Meals and on-course support

• Safety cover and navigation help

  
  

You just show up ready to adventure. We do the rest.

8. A Supportive Global Community

Whether you're travelling solo or bringing a friend, you'll be part of an international community of adventurers who live for challenges like this.

Rat Racers are known for their camaraderie, encouragement, and shared sense of fun. You may sign up to an adventure solo but you'll leave with new friends and a sense of belonging to a unique community where everyone supports each other and competition is left at the door.

9. Relax and Recharge at Lake Kawaguchi

We transfer to Lake Kawaguchi for our celebration meal after the descent, a lake famous for fantastic views of Mount Fuji and the perfect place to reflect on your epic adventure.

10. Not Just Another Summit. A Story You’ll Tell Forever

Japan Sea to Summit isn’t just an event, it’s a story. The kind you tell friends for years. The kind that changes your perspective. The kind that makes you realise how big the world is… and how much you're capable of.

"Having completed the Sea to Summit expeditions in Spain and Greece, I was keen to venture further afield and joined the Test Pilot event for climbing Mt Fuji. It was an incredible experience that provided cultural Japan at its finest, a challenging event that was achievable with breath-taking views at the summits of both Mt Asama and Mt Fuji.

Before the event began, Rat Race provided pre-trip information which provided a good insight to the challenges ahead, what would be included throughout the expedition including meals provided and transport along with a more in-depth itinerary of each day. I asked a few questions about the event of which was responded to in a timely manner. The event was led by Abbi and James who led with great enthusiasm, motivation and professionalism that allowed for this trip to exceed my expectations and achieve the goals of reaching the summit from sea level.

Our challenge took us through a variety of landscapes and allowed for Japan to be seen in a more unique way, outside of just the normal tourist accommodation and activities providing a wonderful experience, surpassing expectations. Nothing will beat the views experienced throughout the event and photos taken do not do them justice.

These events are perfect for both groups of friends travelling together and solo travellers, like I was. You are made to feel at home from the minute you arrive and included throughout the whole itinerary. Rat Race, Abbi and James provided a truly amazing expedition from beginning to end and I look forward to completing further events with them in the future. I cannot recommend highly enough!" Matthew, Japan Test Pilot

Secure Your Spot on Japan Sea to Summit

Spots are limited, and demand is high for this rare opportunity to climb Fuji in a fully supported format.

If you’re looking for a magical cultural challenge, this is it.

🔗 Sign up now