Onsen Spa and Retreat

Australia's first indoor - outdoor alpine retreat and spa

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General Information

Onsen Retreat + Spa is located in Dinner Plain and offers massage, skin care and body treatments. The indoor and outdoor Alpine Spa Retreat also features a Japanese Inspired outdoor Onsen and an indoor heated pool.

During the winter season the Onsen Retreat + Spa run fitness and wellbeing classes and offer gym and bathing passes and memberships.


Location and Opening Hours

Onsen Retreat and Spa is located in Dinner Plain Village on Big Muster Drive. There is parking available in Dinner Plain Village or you can catch the Dinner Plain to Hotham Bus that runs in the winter season from Hotham Central.

Winter Opening Times
Sunday to Friday 11.00am - 5.00pm
(Late treatment bookings available)  

Summer Opening Times
27 December 2017 to 26 January 2018
Sunday to Friday 11.00am - 5.00pm

Bookings essential and available online. Location is featured below:


To avoid disappointment, booking your treatments in advance is essential.  A credit card number is required to secure your booking.

A 24 hour cancellation policy applies to all bookings and any cancellation within 24 hours requires full payment of treatments booked.

We have both male and female professional therapists available. If you have a preference, please let us know when making your reservation.

To make a reservation please call 03 5150 8880 or email info@onsen.com.au.

Alpine Gym Membership

The Onsen Retreat and Spa now has a functional and accessible gym available 24/7. From free weights to spin machines, there is the perfect balance of equipment for any visit to the gym.

An Alpine Gym Membership is available for 3-months for a total cost of $149 per person. Book online to secure your membership pass today. 

Secure a membership online today.

Gift Vouchers

Give to others the gift they would not give themselves – total relaxation and indulgence.

Gift vouchers are available for all treatments and may also be redeemed at White Spa, located on the mountain at Mount Hotham Alpine Resort.

Online purchase - coming soon.

Spa Etiquette

Please check-in at Spa reception at least 20 minutes before your scheduled appointment, ensuring adequate times for you to prepare for your treatment.  Please understand that if you arrive late, your treatment time may be reduced accordingly.

Some guests choose to undress completely for body treatments, while others prefer to wear underwear.  Our advice is to choose what makes you feel most comfortable. During body treatments, we drape your body with warm towels, only exposing the specific area undergoing treatment. Please wear swim wear when using our communal bathing facilities.

Cancellation Policy

If you need to change or cancel your booking, please let us know at least 24 hours before your appointment time. Cancellation within 24 hours requires full payment of treatments booked.

All Inclusive Packages

Relax and let us take care of you with our full treatment packages.

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