Welcome to

The 3 Lochs Ultra!

Join us for the ultimate trekking adventure…

A brand new ultra endurance challenge set in the heart of the Loch Lomond & Trossachs National Park on one of Scotland’s Great Trails.  Whether your a fit seasoned walker, new to trekking, or have set new goals to get in shape – this is the perfect challenge for you, catering from entry level to the elite!

Bronze Early Bird


Early Bird available to the first 100 entries, full price £95 thereafter (includes £26 Registration Fee).

Silver Early Bird


Early Bird available to the first 100 entries, full price £110 thereafter (includes £26 Registration Fee). 

Gold Early Bird


Early Bird available to the first 100 entries, full price £125 thereafter (includes £26 Registration Fee). 



Starting from the small village of Luss on the shores of Loch Lomond, with breath taking scenery all the way, trek past Gare Loch, Loch Long, with a final traverse over the famous Arrochar Alps (Gold only).

  • Choose your entry level from 23 miles (Bronze), 35 miles (Silver), or go the whole 50 miles with over 7000ft of ascent to Gold!
  • Enter as an individual or assemble a team of your,  friends, family or work colleagues and you’re all set for an unforgettable bucket list experience!!
  • Bag drop and transport support included.
  • No pressure to fundraise either, (unless you want to?) If you do, you do it for a charity of your choosing.
  • Fully supported way marked route, checkpoints, hot food and snacks, route marshals, medical support, tech T shirt, finisher medals and more.

Bronze Finish – 23 Miles

Leaving from the village of Luss along the Loch Lomond cycle way to reach Checkpoint 1 at Loch Lomond Shores Balloch. A steady climb from Balloch takes you to the highest point at Ben Bouie, before descending to Checkpoint 2 (Bag Drop location) in Helensburgh for a well deserved rest and hot meal for lunch. From Checkpoint 2, a short walk through Helensburgh, past the famous Charles Rennie Macintosh Hill house before heading out of civilisation into Glen Fruin to reach the Bronze finish. A good introduction to an endurance event.

Silver Finish – 35 Miles

From the Bronze finish (Checkpoint 3) and the route described, Silver & Gold finishers continue on above Gare Loch passing the small town of Garelochead down below, this is where the views really start to open up! Passing through the famous military training area of Garelochead to reach Checkpoint 4 at Glen Douglas and a warm snack from our first class catering crew before the final 5 mile push onto the Silver finish at Tarbet. An intermediate route for those used to longer distances.

Gold Finish – 50 Miles

Time to dig deep, a traverse through the Arrochar Alps lies ahead! From Tarbet (Checkpoint 5 & Bag Drop location), the route ascends over Cruach an Tairbeirt to reach Glen Loin and the long steady climb to Alt Coiregrogain and Checkpoint 6. Both Beinn Narnain and Beinn Ime tower above. From checkpoint 6, ascend the steep grassy slopes of Coire Croe, past the famous “Cobbler” to Checkpoint 7, Arrochar. Retrace your steps back over Cruach an Tairbeirt, to reach the Gold finish in Tarbet. An advanced route for the ultra fit, map reading skills essential!

3 lochs Ultra event guides available to download upon completion of registration. Includes full training programmes for beginners, intermediate and advanced. Advice on kit, nutrition, personal admin etc…

The Routes

Bronze Route

Silver Route

Gold Route

your Weekend Overview

FRIDAY – 6th September 2024

3pm to 7:00pm  Participants arrive at Event HQ, Games Field, Luss, Loch Lomond for Pre Event Registration and to collect maps, t-shirts, timing chips and numbered bibs.

SATURDAY – 7th September 2024

08:00am – Start (all participants)

**Times are approx. and may be subject to change

Register yourself or a team now!


Kit List


Training & Prep




How we do it!

We get an idea

Everyone loves a new challenge but no more than us… Seeking out new challenges is what we thrive on & when we find one… Standby!!

We build on it

Building an event is tough but a rewarding experience, seeing the look on the faces of those crossing the finish line! But for us it doesn’t end there, we continually seek to improve your experience year after year…

We make it happen

Meticulous planning with nothing left to chance. Experience nothing but dedication, care & professionalism from the Ptarmigan team… leaving you with the important part… Smashing the Challenge!!