Seven out of ten. That's my honest score for the Perth to Fremantle by bike run, and I'll explain the three points I docked before anyone accuses me of being harsh.
It's roughly 19 km depending on which side of the river you pick and how much you detour around the marina. Mostly flat. Mostly sealed. Genuinely useful as a commute rather than just a weekend spin, which is more than I can say for a lot of the paths people rave about around Perth.
The route, top to bottom
You've got two obvious ways to do it. The south side of the Swan through South Perth, Como and Applecross, or the north side out through the CBD and along Stirling Highway-adjacent paths toward East Fremantle. I rode the south side last weekend on the gravel bike, solo, and I've done the north side enough times on the old hybrid to compare fairly.
South side is the prettier ride, no argument. You leave the city near the Narrows, pick up the shared path around Mill Point Road, and from there it hugs the water most of the way to the Canning Bridge. Surface is good bitumen for the bulk of it. There are a couple of spots near Applecross where tree roots have lifted the seal and you'll feel it through the bars if you're running skinny tyres at 90 psi. Drop to 70 and it's fine.
North side is less scenic but faster and more direct if you're actually trying to get to work. Fewer pedestrians once you're clear of the city. The path quality dips in patches around Mosman Park where you're pushed closer to traffic than I'd like, but nothing sketchy if you hold your line.
Surfaces and where the gravel bites
Most of this route is sealed shared path, which is the whole reason it works as a commuter run. But there are two gravel patches worth flagging. The first is a short unsealed section near the Point Walter reserve turnoff if you drift off the main path. The second is around some of the foreshore reserve access points where maintenance has let things slide.
Neither is a problem on 32c tyres or wider. On a road bike with 25s you'll want to pay attention and maybe slow through them. I ran 35c gravel tyres and didn't think about it once, which is the point. If you're commuting daily, reckon a hybrid or gravel setup is flat out the pick here over a pure road bike. You'll be more comfortable over the root heave and the odd gravel patch, and you won't be precious about kerbs.
Gradients, or the lack of them
This is a river route, so it's flat. The only real climbs are the bridge approaches. Canning Bridge has a decent ramp on it, and if you cross the river at any point you'll earn a short pinch getting up and over. Nothing that needs a granny gear. A commuter in average nick will manage it without standing.
The one genuine gradient decision is at the Fremantle end, where you can either drop straight into the port area or take the higher line through East Fremantle. The high line is quieter. The low line puts you at the coffee sooner. I take the low line every time and stop at a spot near the fishing boat harbour, which is my usual landmark for knowing I've actually finished the ride.
Traffic, pedestrians and the crowding problem
Here's where I get mildly contrarian. Everyone talks up the riverside loop like it's the crown jewel of Perth cycling. On a Sunday morning it's a mess of walkers, prams, dogs on retractable leads and other cyclists doing 12 km/h three abreast. As a commute at 7am it's brilliant. As a leisure ride at 10am on a weekend it's frustrating and slow.
Honestly, I'd rather ride the unglamorous commuter principal shared path routes on the north side any day the riverside is heaving. Less to look at, but you can actually hold a pace and you're not braking every hundred metres. Fair enough if you want the views. Just dont expect to make time on a weekend.
Weekday mornings and evenings the crowding disappears and the route shows its real value. This is where the network planning by groups like WestCycle actually pays off — the connected shared paths mean you can get from the city to Freo without ever fighting for road space with cars for more than a few short stretches.
Gear, water and where to stop
Nineteen kilometres one way isn't much, but if you're doing the round trip you're looking at nearly 40, and there's not a lot of natural shade for long stretches along the water. Carry a bottle, wear something on your head, and if it's a hot Perth summer day, go early. The foreshore reserves have taps at intervals but don't count on every one working.
For a mid-ride breather with a view, The Margot Ross Memorial Observation Platform is a decent spot to pull off, stretch and check the river before you push on. It's the kind of stop that makes the south side worth the extra minutes over the faster north line.
If you're not a confident rider and just want to see the bridges and the river without committing to the full run, the Swan River Bridges and City Segway Tour in Perth covers a chunk of the same city-end scenery at a gentler pace. Not my style, but it does the job for some people.
How it fits the wider network
The Perth to Fremantle run is really the polished, urban end of a much bigger cycling picture in WA. If you catch the bug and want something with actual dirt under the tyres, the Munda Biddi Trail Foundation maintains the off-road trail that runs hundreds of kilometres south from the outer suburbs. Completely different beast — that one needs a mountain bike, proper tyres and planning. The Freo commute is the entry-level, sealed version of the same idea: get out of the car and onto two wheels.
For visitors who want the ride bundled into a broader itinerary, our Perth Activities & Experiences rundown covers where cycling fits alongside everything else, and if you're planning a proper WA trip the 7-Day Perth to Exmouth Kalbarri Coastal Adventure from Perth is the sort of thing you tack on after you've done the local rides.
The verdict, and those three docked points
So, why 7 and not 9? First point off for the crowding on the scenic sections at peak leisure times — it genuinely undercuts the experience if you time it wrong. Second point for the surface inconsistency: root heave through Applecross and the neglected gravel access points let it down for a route that's otherwise well maintained. Third point for the traffic pinch around Mosman Park on the north side, which pushes you closer to cars than a route this good should.
None of that makes it a bad ride. It's one of the best flat, sealed, genuinely useful commuter runs in the metro area, and on the right bike at the right time of day it's close to ideal. Just go in knowing what you're getting: a working commute that happens to have a nice view, not a postcard that happens to have a path.
Do it once each way on a weekday before you form an opinion. Then, if you want the views without the pace pressure, come back on a weekend and take your time. Two different rides on the same stretch of river.