Arthurs Seat MTB Park

Overview

Arthurs Seat State Park sits on the spine of the Mornington Peninsula, ~60 km south of Melbourne CBD, and is one of Victoria's most-ridden urban-fringe MTB networks. The park offers 20+ kilometres of purpose-built singletrack stitched together with management vehicle tracks, served by three trailheads that let riders pick anything from a flat green loop to a steep, rocky black-diamond descent. Wonga (the Bunurong name for Arthurs Seat) is the marquee blue/green entry trail and reportedly the busiest line in the network — Red Hill Riders' track counters have logged ~8,000 passes per month after new jumps were added in 2024.

The riding character is granite-rocky, root-laden, and gradient-rich rather than manicured flow. Black runs ("Pins & Needles", "Fall Line", "Crusher", "Gunn Barrell") feature skills gates at the trailhead so riders can self-assess before committing. Climbing is real — riders typically descend Sawtooth (2.8 km) to McLarens Dam and grind back up Bowsaw (2.8 km) to the Seawinds carpark.

The park is built and maintained almost entirely by Red Hill Riders MTB Club volunteers (formed 2009; 350+ members), with land managed by Parks Victoria. Trails were formalised for mountain biking in autumn 2015. Mountain-bike shuttle services and guided e-bike tours operate out of the Seawinds and Boundary Road carparks, including seasonal "Reddy 2 Roll" shuttles and Red Hill Trail Co's Father/Son guided tours.

Location & Access

Address: Seawinds Mountain Bike Carpark, Purves Road, Arthurs Seat VIC 3936 (primary trailhead)
Region: Mornington Peninsula
Drive times: ~75–90 min from Melbourne CBD via Mornington Peninsula Freeway + Arthurs Seat Road; ~50 min from Frankston; ~45 min from Sorrento.
Public transport: Limited — no direct PT to the carparks. Closest options are bus routes through Dromana / Rosebud; effectively car-only for most riders.
Parking: Three free carparks (gravel/sealed):

Seawinds Mountain Bike Carpark (Purves Road) — main MTB hub; toilets; bring own water; trail info at trailhead inside the gate.
Arthurs Seat Road Carpark — 2.7 km east of Arthurs Seat Lookout; access to eastern trails; no toilets; bring own water.
Boundary Road Carpark (Hillview Community Reserve, Dromana) — toilets, drinking water, bike maintenance station; trails start 400 m south (uphill) from the carpark.

Coords: -38.36274, 144.97563 (matches DB; verified against Google Maps)

Best Season & Conditions

Peak riding season: Autumn / spring / cooler half of the year. Soils drain quickly; mostly rideable year-round.
Wet-weather impact: "Trails can be closed due to extreme weather events. Observe closure signs and check parks.vic.gov.au for updates." Volunteer maintenance happens "throughout most of the year apart from the really dry parts of summer" (Lachlan Wakeling, RHR President).
Fire-danger / total-fire-ban impact: Park closes on Code Red Fire Danger Rating days for public safety. Closure signs may be erected but riders should not expect an official warning — check the Fire Danger Rating before driving down. Fires (incl. campfires and solid fuel heat compounds) are not permitted in the park.
Snow / alpine season: N/A (low coastal hills, peak ~314 m).
School-holiday surge: Weekends and Vic school holidays are busy — shuttles book out in advance; expect company at Seawinds.

Managing Body & Trail Builders

Land manager: Parks Victoria.
Trail builder / maintainer: Red Hill Riders Mountain Bike Club (volunteer-built and maintained network). Some crew have professional trail-building experience overseas; the club has 350+ members.
Volunteer / dig days: Weekly Tuesday maintenance sessions with ~12 regulars; larger weekend working bees with up to 50 volunteers; ~1,250 volunteer hours per year. New riders are welcome via Red Hill Riders' working-bee callouts (parks.vic.gov.au news, May 2025).
Donations / membership: Membership $30+ /yr (redhillriders.com.au). Tax-deductible donations to Trail 28 (gravity-trail expansion) via Australian Sports Foundation. Trail Adoption Program (TAP) for business sponsors.
Contact (club): committee@redhillriders.com.au
Contact (Parks Victoria): 13 1963

History & Background

Founded (club): Red Hill Riders formed in 2009 by local riders wanting to maintain Arthurs Seat as a riding destination.
Network formalised: Autumn 2015 — the park's MTB network officially opened for mountain bikers after Red Hill Riders' approval-and-build phase with Parks Victoria.
Cultural / Indigenous significance: The peak (Arthurs Seat) is named Wonga in Bunurong language — Wonga is also the name of the network's flagship green/blue trail, an explicit nod to Country.
Notable events hosted: AusCycling Victoria Schools Series races; "In Search of Stoke 2026" (listed on Red Hill Riders site).
Recent expansion: "Trail 28" — a new gravity trail in approval/construction phase. Initial planning + design (permits, cultural heritage surveys, flora/fauna surveys, trail design) cost
9,899. Club has all Parks Vic approvals and is "shovel-ready"; fundraising via the Australian Sports Foundation.