International Mountain Day 2025: Celebrating the Mountains We Love

Happy International Mountain Day, mountain lovers! Today’s all about appreciating the peaks, valleys and wild places that make life feel a little bigger – and this year’s theme, “Glaciers matter for water, food and livelihoods in mountains and beyond,” is a powerful reminder of just how important these environments really are.

Glaciers: A Global Lifeline

Even though we don’t have active glaciers in Australia today, they’re a major part of the global story. Glaciers hold about 70% of the world’s freshwater, keeping rivers flowing, crops growing and communities supported.

Here in Kosciuszko National Park, the landscape still carries the marks of ancient ice. Around 17,000–20,000 years ago, glaciers carved out the dramatic terrain we love exploring today – from sweeping U-shaped valleys to iconic alpine lakes like Blue Lake, Lake Cootapatamba, Lake Albina and Club Lake.

If you’ve hiked the Main Range on a bluebird day, you’ve literally walked through time.

Our Commitment to the Mountains

Days like today also remind us why taking care of this place matters. Thredbo is proud to operate with ISO 14001:2015 Environmental Management System certification, which helps guide everything from how we manage waste and protect waterways to how we operate lifts, venues and events sustainably.

We’re also incredibly proud to have been awarded Gold EarthCheck Sustainable Destination Certification five years running – the first Australian snow resort to achieve this internationally recognised milestone. EarthCheck’s rigorous standards span 12 key performance areas, covering everything from energy efficiency and greenhouse gas reduction to land use planning and waste management.

We’re continually investing in initiatives that reduce our footprint, protect fragile alpine habitats and support the long-term health of the Snowies, because these mountains deserve nothing less.

Head to our Environment & Sustainability page to learn more about our initiatives.

Any Season, Every Reason

The best way to celebrate International Mountain Day? Get out there and enjoy them!

In summer, Thredbo really shows off.  Explore it all with our world-class hiking experiences or chase hero dirt in our premier mountain bike park, where long laps and alpine views set the tone.

Hit the link below to explore everything summer has to offer.

Explore Summer

In winter, Thredbo shifts into its iconic snowy self. Crisp mornings, perfect cord and the unmistakable buzz of Australia’s Best Ski Resort bring the mountains to life. If you’re already dreaming about Winter 2026… yeah, us too.

Planning ahead? Check out the latest accommodation deals and lock in your next snow escape.

Explore Winter Accommodation

See You at the Top

Whether it’s singletrack, summits or fresh snow, the mountains are always doing what they do best: showing off. And there’s no better place to soak it all in than right here in Thredbo.

Any season. Every reason.

And the views? Always better from here.