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Beneath Sado's waves, a world awaits.


48 years of diving one island's extraordinary ocean.
Your turn.

4.9★★★★★

The Ocean

An 85°C hot spring erupts from the ocean floor.

The Kobudai Giant Asian Sheepshead Wrasse swim right up to you, close enough to touch.
Underwater Hot Springs One of the world's rarest dive sites — volcanic vents heating the sea to 85°C.
Shipwreck Exploration Explore sunken vessels resting silently on the ocean floor.
Four Seasons of Life Where warm and cold currents collide — a biodiversity hotspot year-round.
I've dived oceans all over the world. In the end, I chose Sado. Hitoshi Sakuma · Owner, Est. 1978
About Sado's Ocean

Why divers keep choosing us on Sado Island

4.9

Jalan.net Rating / No.1 in Sado Area

1,100+

Divers who've explored
Sado with Freeway

47 yrs

Guiding divers through
Sado's waters since 1978

PADI

Internationally certified
PADI Dive Center

From Our Divers

Jalan.net
4.9 / 5.0
★★★★★ 43 reviews
★★★★★

"I picked up diving at 65 and hit my 100th dive right here in Sado. The crew surprised me with an underwater celebration — I'll never forget it. The guides know these waters inside and out, and every dive is a new memory."

— 100th Dive Milestone (age 65, office worker)

★★★★★

"First time diving and I was pretty nervous, but the staff were so patient — never rushed us once. Felt totally safe the whole time. And then a massive Kobudai swam right up to us. Unreal. We're already planning our next trip."

— First-time diver (couple in their 20s)

★★★★★

"I've been coming to Sado for eight years now. Tried other shops along the way, but Freeway is on another level — the safety, the guiding, everything. They always know exactly which point to hit, and I see something new every single time."

— 8-year returning customer (40s, self-employed)

★★★★★

"I was a little nervous going in, but the staff let me take my time and never pressured me. The water was so clear, and the fish just came right up to us. Honestly one of the best experiences of my life."

— First-time diver (20s, student)

★★★★★

"Four years straight and counting. The service never dips — it's consistently top-notch every visit. My only regret is not finding this place sooner."

— Goro (4-year repeat visitor, 50s)

★★★★★

"We brought the whole family — including our 10-year-old daughter. A staff member stayed glued to her side the entire dive. They even took underwater photos of all four of us. Hands down, best summer memory we've ever made."

— Family of 4 (40s, child age 10)

Overall Rating 4.9 / 5.0 (43 reviews)

Your turn.

Sado's ocean is waiting. Come see for yourself.

Book Now

Featured In

Find Your Perfect Dive

First-Time Diving

For Beginners

First-Time Diving

¥14,500~

"Sunlight from below the surface — it's something you'll never forget."— Hiroyuki Koide (Sado Shop Manager)

Your own guide, your own group. Go at whatever pace feels right.

No license needed Ages 10+ ~3 hours
Fun Diving

Returning Divers

For Licensed Divers

¥16,500~ (2 boat dives)

30 centimeters from a Kobudai.

17 dive points, each one different. Veteran guides who know every rock and current.

C-card required Ages 12+ Transfers included Tank & weights included
PADI Course
Early Bird Special

Get Licensed

Start in Sado. Dive the world.

¥68,000~ (3-4 days)

PADI Open Water Diver course. Earn your C-card — recognized in 180+ countries — surrounded by Sado's incredible marine life.

eLearning available All materials included Small groups No hidden fees

2026 EARLY BIRD CAMPAIGN

Get Certified for Less This Summer

Book your Open Water Diver course by the end of June and save ¥10,000.
¥68,000¥58,000(tax incl.)
This summer, Sado. Your diving life starts here.

Book Early Bird

If you want to see Kobudai up close — courtship, spawning, head-on battles — Sado is the place. They still blow my mind every time.

— Hiroyuki Koide (Sado Shop Manager)

Meet Our Team

Hitoshi Sakuma

Hitoshi Sakuma

Owner / PADI Master Trainer

"Dive Sado year-round and you'll feel the ocean change with the seasons. Come in the summer heat — and come back when the snow falls."

He's dived oceans all over the world, and chose Sado. 48 years later, he's still here — the man who built Freeway from the ground up.

Hiroyuki Koide

Hiroyuki Koide

Sado Shop Manager / IDC Staff Instructor

"Looking up at the sun from underwater — it's otherworldly. Come see it for yourself. We'll be here."

Trained in Okinawa for three years before moving to Sado. He's been in these waters nearly every day for 12 years — a true craftsman with an obsession for macro life.

Chika Nakagawa

Chika Nakagawa

Instructor

"Celebrating milestone dives with our guests — that's the best part of this job. And ladies, don't think twice about coming solo!"

Freeway's only female instructor. She makes every diver's milestone feel special and shares the Sado diving life on her blog.

Frequently Asked Questions

What if I can't swim?

No problem at all. Your wetsuit keeps you buoyant — you won't sink. Plenty of non-swimmers dive with us and have a great time.

Can I come by myself?

Absolutely. We run small groups and our staff gives you as much one-on-one attention as you need. Solo visitors are always welcome.

I wear glasses — is that okay?

Contact lenses work great (dailies are best). We also have prescription masks available to rent — just mention it when you book.

Can kids join?

Ages 10 and up can do a trial dive. Parents or guardians are welcome to watch from a spot where they can keep an eye on things.

I get seasick easily.

Most of our dive points are just 3 to 15 minutes from the harbor by boat. It's a quick ride, so even if you're prone to seasickness, you'll be fine.

How do I get to Sado?

Take the Niigata–Ryotsu ferry. The jetfoil gets you there in about an hour; the regular ferry takes around 2.5 hours.

Shop Information

Two locations: Sado Island & Niigata City

Sado Shop exterior

Sado Shop

Address 1211-3 Higashiodori, Sado City, Niigata 952-1307
Phone 0259-52-5781
Hours Apr–Dec: 10:00–20:00 / Jan–Mar: 11:00–19:00
Closed Irregular holidays (closed over New Year's)
Access ~25 min by car from Ryotsu Port / 7 parking spaces / Transfers available
Payment VISA / MASTER / JCB accepted
FAX 0259-52-5782
Email freeway@cocoa.ocn.ne.jp
Niigata Shop exterior

Niigata Shop

Address 5-2-10 Meike, Chuo-ku, Niigata City, Niigata 950-0941
Phone 025-250-0181
FAX 025-250-0182
Email freeway.n@sand.ocn.ne.jp
Hours 10:00–19:00 (Closed Wednesdays)
Access 2-min walk from "Meike Nichome" bus stop / Across from Meike Elementary School
Call Book Online