Piranha Onsen • 温泉

Bali's Luxury Onsen & Wellness Club

The wellness club & onsen bringing together saunas, ice baths, fitness, yoga, reflexology and massage, all under one roof.

What is Piranhas Onsen?

A recovery, wellness & movement club in Seminyak, Bali, onsen-style hot pool, sauna and ice bath, a gym, massage and yoga, all under one roof. Come to reset. Booking is one WhatsApp message away.

Home, Piranhas Onsen

Location

Right in the heart
of Seminyak.

Located in the heart of Oberoi, Seminyak, a short stroll from the beach and the island’s best cafés and dining.

The Piranhas ritual

Three movements,
one return to calm.

01温 · Warm

Heat & soak

Begin in the onsen and private infrared sauna. Muscles soften, circulation opens, the mind slows.

02冷 · Cold

Plunge & awaken

Step into the ice bath. A bracing, deliberate cold that sharpens focus and floods the body with clarity.

03休 · Rest

Recover & restore

Close with massage, breathwork or stillness in the recovery garden. Let the nervous system settle.

What's inside

Everything under one roof.

Recovery Area, Piranhas Onsen
Recovery

Onsen & Recovery

A heated onsen-style jacuzzi pool, a large hot sauna and a cold plunge, the heart of the ritual.

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Private Infrared Sauna & Ice Bath, Piranhas Onsen
Contrast therapy

Sauna & Ice Bath

A private infrared and red-light sauna at 65°C and a 10°C cold plunge for one to three people, the full hot-to-cold contrast.

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Massage, Piranhas Onsen
Bodywork

Massage

Luxury private massage rooms and skilled therapists, firm or gentle, tailored to your body.

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Foot Massage, Piranhas Onsen
Reflexology

Foot Massage

A relaxing pressure-point foot massage to reset tired, travelled feet.

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Gym, Piranhas Onsen
Movement

Gym

An aesthetic training room with premium Life Fitness equipment, pair a session with recovery to close the loop.

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Yoga, Piranhas Onsen
Breath & flow

Yoga

A calm yoga and floor-Pilates studio, also available for private hire.

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Why Piranhas

What makes us unique.

01 · Location

By The Oberoi, Seminyak

Set on Jalan Kayu Aya in the heart of Seminyak, steps from The Oberoi and the beach.

02 · Always intimate

Limited guests each day

We cap daily numbers so the club never feels crowded, your recovery, unhurried.

03 · Japanese craft

Hinoki-wood ice bath

A traditional Japanese wood cold plunge, colder, calmer and more authentic than a plastic tub.

04 · Twin heat

Two saunas

An infrared sauna and a traditional hot-stone sauna, so you can choose your kind of heat.

05 · Soak

7-metre heated jacuzzi

A seven-metre heated jacuzzi lined with natural stones, built for long, slow soaks.

06 · Move

Life Fitness gym

A fully-equipped Life Fitness gym with a premium sound system to train, then recover.

Home, Piranhas Onsen

Private infrared sauna hire by the hour

Contrast therapy

The heat that
resets the body.

Our private infrared sauna penetrates deeper than traditional heat, easing muscles, supporting circulation and calming the mind. Paired with the ice bath, it forms the heart of the Piranhas ritual.

Sessions are private and unhurried. Come alone, or share the room with someone who matters.

38°C
Onsen
10°C
Ice plunge

7 days

Open weekly
100%
Members & walk-ins
Pricing

Simple, all-in pricing.

Pay per visit, grab a visit pack, or go unlimited with membership, onsen, sauna, ice bath, gym and yoga, all in one place.

IDR 200k
Gym only
IDR 290k
Recovery visit
from IDR 1.99m/mo
Membership
Inside the club

A space made for slowness.

Loved by members

What the ritual does.

The Journal

Notes on heat, cold & calm.

Begin

Your ritual is waiting.