Lake Onslow: A Remote Highland Reservoir
Lake Onslow is a secluded lake situated in Central Otago, 700 metres above sea level. Nestled between the Lammerlaw and Knobby Ranges to the west and the Rock and Pillar Range to the east, this remote location is perfect for those seeking solitude. The lake is known for its excellent trout fishery and provides a peaceful retreat surrounded by expansive skies and rugged golden tussock landscapes. The cribs with their long-drop toilet stalls are a curious and surprisingly scenic feature on the ridgeline above the lake.
History and Features of Lake Onslow
Originally, the area of the lake was known as the Dismal Swamp. Lake Onslow is a man-made reservoir, created with the construction of a dam in 1890. It was named after Lord Onslow, who served as Governor General of New Zealand from 1889 to 1892. In 1982, the lake's level was raised by five metres, expanding it to cover approximately 830 hectares, making it one of the largest highland reservoirs in the region.
On arrival, you can park near the lake, then wander freely around the shores, being mindful that the cribs are private property.
How to Get There
From Roxburgh, take Wright Road, which becomes Sanders Road, as it winds high up into the highlands east of the town. Up to this point, the road is gravel, but it is well-maintained. At the 600 metre high mark, you reach Lake Onlsow Road, which eventually deteriorates as it rises to 900 metres, with deep ruts in places. There is also an exotic forest located towards the top, so logging trucks may be present at times. The road then drops quickly down to the lake. Although it was rough, we were able to drive it in a small 2WD with care.
Other remote trips around Central Otago include the Old Dunstan Road, Poolburn, the Upper Manorburn, Hawkeburn Road and the Nevis Road.
