COLLIE → NANNUP
Brief overview
A technically varied section linking Collie to Nannup via Wellington National Park and the Blackwood River region. Features the trail's most challenging descent near Honeymoon Pool, classic forest riding and a rewarding finish in Nannup — the halfway town of the Munda Biddi.
Description of the Trail
Leaving Collie, the trail enters the shaded forest of Wellington National Park after an exposed 10 km section along the Coalfields Highway.
A fun singletrack descent on steep switchbacks leads to the Collie River near Honeymoon Pool — the most technically difficult section of the entire Munda Biddi Trail.
Experienced mountain bikers will enjoy this descent; others may prefer the River Road alternative past Honeymoon Pool campground.
From the Nglang Boodja Hut, the trail climbs through hilly farmland before descending toward Boyanup and continuing south through Crooked Brook Forest.
Watch for wildflowers in spring.
Donnybrook offers a welcome resupply with a full range of services.
From Nannup to the Nala Mia Hut at Jarrahwood, the trail follows a former railway trackbed with gentle grades and picturesque wooden ex-railway bridges.
Nannup is a pretty country town with all the supplies, food, drink and accommodation a cyclist could desire.
Highlights
Trail Breakdown
Day 1: Collie to Nglang Boodja Hut. The first 10 km follows firm gravel and dirt roads close to the Coalfields Highway with little shade. You then enter Wellington National Park and enjoy shaded forest riding before a technical singletrack descent on steep switchbacks to the Collie River near Honeymoon Pool.
Day 2: Nglang Boodja Hut toward Boyanup area. The trail climbs steadily from the Collie River through hilly farmland with beautiful views. The track descends to flat land near Boyanup — the Munda Biddi does not enter Boyanup but a pub and café are available via detour.
Day 3: Boyanup area to Donnybrook. About 10 km from Boyanup, a singletrack section passes through Crooked Brook Forest — spectacular wildflowers in spring. Most of the ride is uphill through hilly farmland. Donnybrook is a relatively large town with almost everything a hungry, thirsty or sleepy cyclist could desire.
Day 4: Donnybrook to Nala Mia Hut (Jarrahwood). The trail backtracks toward Nannup briefly before looping north and west of Donnybrook through farmland, then follows 20 km of paved road toward Boyanup before turning toward Jarrahwood. The Nala Mia hut is in the tiny community of Jarrahwood — flushing toilet and drinking water available.
Day 5: Nala Mia Hut to Nannup. The singletrack trail follows a former railway trackbed with few bends and gentle grades, crossing picturesque wooden ex-railway bridges. Nannup is the halfway town of the Munda Biddi — a pretty country town with full supplies, food, drink and accommodation.
Signage
Standard Munda Biddi markers throughout. Forestry intersections require attention — GPS backup strongly recommended. River Road alternative is clearly accessible near Honeymoon Pool for those bypassing the technical descent.
Campsites and Facilities
Nglang Boodja Hut (Wellington National Park) · Nala Mia Hut (Jarrahwood) — All huts include: Enclosed hut, Tent sites, Rainwater tanks, Drop toilets. Donnybrook provides: Supermarket, Cafés, Accommodation, Pub, Full town services. Nannup provides: Supermarket, Cafés, Accommodation, Bike-friendly services.
Getting there
Start: Collie — vehicle access, parking available. Finish: Nannup — full town services. Transport coordination recommended for one-way trips. Donnybrook optional detour adds 8 km return.
Who is this section for?
Riders comfortable with consecutive 30–40 km days. Experienced mountain bikers seeking the trail's most technical descent. Hut-to-hut bikepackers. E-MTB riders with strong battery planning for remote sections. Riders who want a true wilderness feel between two well-serviced towns.
Practical tips
Real Stories from travelers
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“We rode the Munda Biddi end-to-end over 16 days on the hardtails with full camping gear. It was raw, challenging and absolutely incredible. Waking up in the forest every morning, riding through endless jarrah trees and feeling completely disconnected from everything — that’s what made it special. The bikes were perfectly set up for bikepacking and we felt fully self-sufficient the whole way.”
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“I chose the hardtail expedition setup with camping gear and it was the best decision. Everything was dialled — bags, gear, bike. Long days, sometimes tough, but the freedom you get riding fully self-supported is unreal. If you’re looking for a real adventure, this is it.”
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“We did a 7-day section with the electric bikes — honestly the perfect balance. You still get the full Munda Biddi experience, but without carrying gear. The e-bikes made longer distances super enjoyable and arriving at a proper bed each evening was a game changer.”
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“I wasn’t sure I could handle multiple days in a row, but the e-bike setup made it completely doable. Great distances, amazing scenery, and no stress about logistics. Everything was planned and smooth from start to finish.”
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“We started in Dwellingup and finished in Nannup with the bike delivery and pickup organised — super easy. Not having to worry about transport made a huge difference. We just focused on riding and enjoying the trail.”
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“The shuttle option was perfect. We got dropped right at the trailhead and picked up at the end — no hassle, no planning stress. It made the whole experience feel seamless and way more enjoyable.”
Choose your experience
✓Electric Bike + Accommodation
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