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Sunset over the Megalong Valley, Blue Mountains

WELCOME

to Under Sea, Over Stone!

This site was created to inspire you to step away from the desk and into the outdoors - to simply look up. From office to outside, we’ve designed it as a one-stop shop for all things hiking. Here, you’ll find everything you need to get into the great outdoors: trail guides, gear advice, and inspiration to start exploring.

And we don’t just talk about hiking - we run carefully curated group hikes in and around Sydney, giving you the perfect excuse to get outside and connect with like-minded souls. Along the way, we hope to make a positive impact on our communities and the environment.

This space celebrates every reason we’ve found to swap the boardroom for the bush, and we hope you'll find it a great way to start your next adventure.

If you have any immediate questions, why not check out our FAQ's, or - if you want to check out where we walk, why not have a look at our blog - look for the 'Official USOS hike' icon!

Great North walk signpost, Sydney

What We Offer

We’re all about giving people a breather from the hustle and bustle of everyday life. Here’s what we’re offering:

  • Hiking adventures in and around Sydney: Our guide, Richard, is a true nature nut who knows Sydney's trails like the back of his hand. Whether it’s his favourite well-worn paths or those hidden gems you’d never stumble across on your own, these hikes are all about showing you a side of Sydney you may not have seen. Designed to help you unplug, move your body, and reconnect with the great outdoors, they’re the perfect way to reset your mind and revive your spirit. Simply click on the 'Book Now' button below to kick start your next adventure.

  • Kit recommendations: So. Much. Stuff! It is our pleasure to trial on the trail, and we'll share with you the kit that we've found that works, and explain why we think it's a must-have in any pack. Have a look at what we've been using here.

  • Hiking trail suggestions: Whether its here in Aus or further afield, we've pulled together descriptions of some of the best hikes we've been on. Check out our blog for more details.  

  • Learning resources: It doesn't matter if you're new to the trail, or simply polishing your practice, here are the services and resources we recommend ​that can help you take your hiking to the next level.

Come along for a bit of adventure, a whole lot of fresh air, and a chance to feel human again.

View Gallery

Here are some of our favourite photos from recent hikes.

We hope these will help you get a feel for what we offer on the trail.

Wispy clouds in a blue sky above Jervis Bay

Book Your Spot

In the spirit of reconciliation, Under Sea, Over Stone acknowledges the Traditional Custodians of Country throughout Australia and their connections to land, sea and community. We pay our respect to their Elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.

Under Sea, Over Stone offers FREE of charge hiking services.

Taking part in hiking activity is at the risk of the participant - we will not accept responsibility for any injury or incident. 

All images used on 'Under Sea, Over Stone' are the property of Richard Bennett © 2025.

Visit Some of the Sites We Love! 

CONTACT

US

Tel. 0415 569 881

Earlwood, 
NSW

WALK WITH US

Hikes run once a month, typically Sundays - check the calendar for details of each month's event.

10:00 - 17:00

Times vary depending on proposed hike.

TALK TO
US

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