Warren Reservoir Loop Trail

About This Trail

Warren Reservoir sits in a pocket of native bushland near Williamstown in the Mount Lofty Ranges, offering one of the most accessible and relaxed flat-water paddles close to Adelaide. The reservoir loop winds past flooded gums and paperbark stands, with Mount Crawford Forest rising to the east.

The longer option covers approximately 9 km in a full loop of the reservoir, including a rewarding section up the South Para River where fallen trees and meandering bends add interest. The shorter option focuses on the South Para River loop at about 3+ km and suits beginners or those wanting a quick outing.

Adelaide Canoe Club conducts regular social paddles at Warren and South Para Reservoirs — a great way to explore the area with an experienced group.

Launch Sites & Route

There are two launch points accessed from Warren Road, Williamstown. The Eastern site is the primary start for both the long and short loop options.

Route Description

Option 1 — Longer Loop (9 km)

• Launch from the Eastern Launch Site (Launch Point 2) and paddle north-west up the reservoir.
• Head under the road bridge and north-west up the reservoir, following the eastern shoreline toward Launch Point 1.
• At the northern point, rest at Launch Point 1 (toilets available). Note: this stretch often involves paddling into a northerly wind — once you reach Launch Point 1 the hardest part is done.
• Head back south down the reservoir following the western shoreline. You will reach a ‘no access’ area marked by a line of buoys — follow the buoys across to the point and continue paddling south.
• There are plenty of spots to pull in for a picnic, for example at Point A (GPS 34.7090°S, 138.9268°E).
• Continue south and either head back under the road bridge toward your start, or continue to explore the southern inlet and bays.
• Follow the shoreline around the bottom of the reservoir and paddle north back under the bridge to your starting point.
• From your starting point, follow the shoreline clockwise or anti-clockwise to reach the entrance to the South Para River at Point B (GPS 34.7013°S, 138.9370°E) — a great meandering section with tree-lined banks and fallen timber obstacles to navigate.
• Depending on conditions, several submerged tree trunks can be paddled over before the route becomes impassable. Return the way you came and paddle back under the old bridge to your start.

Option 2 — Shorter Loop (3+ km)

• Begin at the Eastern Launch Site (Launch Point 2) and paddle directly to the entrance of the South Para River at Point B.
• Follow the tree-lined river upstream, navigating around fallen timber and submerged trunks.
• Paddle back to your starting point when the river becomes impassable or you’re ready to return.

Option 1 — Reservoir Loop
Option 2 — South Para Loop

Wildlife & Environment

The reservoir and its surrounds support a rich variety of birdlife. Black swans, cormorants, herons, egrets and sacred kingfishers are commonly sighted on the water, while the bush edges bring parrots, honeyeaters and raptors including the occasional wedge-tailed eagle. Kangaroos and other wildlife frequently visit the shoreline, especially in the early morning.

The South Para River section rewards quieter paddlers — the enclosed tree canopy and slower water make for an intimate environment quite different to the open reservoir. Look for waterbirds perched in the partially submerged gums.

Facilities & Nearby

Toilets are located at the Northern car park off Warren Road (Launch Point 1). The shoreline of Warren Reservoir is generally shallow and sandy with plenty of great spots for a picnic break along the way.

Accommodation at Williamstown Caravan Park is only a 5-minute drive from both Warren and South Para Reservoirs, making this an ideal base for a weekend paddling trip. Warren and South Para reservoirs are also close to each other and linked by several walking and cycling trails — Southern Trails and Northern Trails maps are available from the SA Water Warren Reservoir website.