Blue Lake (Mount Gambier)
Blue Lake (Mount Gambier) — A strikingly vivid blue crater lake within an extinct volcanic caldera in the city of [Mount Gambier](/au/places/sa/mount-gambier).
Natural Landmark in South Australia
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About Blue Lake (Mount Gambier)
A strikingly vivid blue crater lake within an extinct volcanic caldera in the city of [Mount Gambier](/au/places/sa/mount-gambier). The lake's remarkable cobalt blue colour appears each year between November and March (turning grey-green in winter) and is caused by calcite crystals suspended in the water as temperatures warm. The lake is 70m deep and is the primary drinking water supply for Mount Gambier.
About
A strikingly vivid blue crater lake within an extinct volcanic caldera in the city of [Mount Gambier](/au/places/sa/mount-gambier). The lake's remarkable cobalt blue colour appears each year between November and March (turning grey-green in winter) and is caused by calcite crystals suspended in the water as temperatures warm. The lake is 70m deep and is the primary drinking water supply for Mount Gambier. It sits in a caldera shared with Valley Lake and Leg of Mutton Lake.
Warnings
Getting There
Located within the city of Mount Gambier, 450km southeast of Adelaide via the Princes Highway. Well-signposted from the city centre.
Nearest airport
Visitor Tips
- •Walk the full 3.6km perimeter for changing perspectives. Visit Valley Lake and Umpherston Sinkhole in the same trip — all within 5km.
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Quick Facts
At a Glance
The Place
- Significance
- State
Plan Your Visit
- Entry
- Free
- Duration
- 1–2 hours
- Best Time
- November–March for the vivid blue colour
- Hours
- Open year-round. Viewing platform accessible anytime.
Location
- Area
- Mount Gambier
- Region
- Kangaroo Island
- State
- South Australia
Good to Know
Highlights
Activities
Features
Facilities
Travellers also visited
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Nearby
Campsites(5)
Trails(3)
Attractions(5)
Toilets(3)
Groceries(5)
Fuel(5)
Dump Points(5)
Mount Gambier Dump Point
Free · 0.6km
Mount Gambier Showgrounds Dump Point
Free · 1.7km
Tarpeena Dump Point
Free · 22.6km
Riddoch Highway
Free · 22.6km
Port MacDonnell Dump Point
Free · 25.6km
Pubs(5)
Fast Food(5)
Golf Courses(3)
State Forests(5)
National Parks(5)
Unnamed (No.HA123) Heritage Agreement
Nature Reserve · 11.8km
Laslett Forest Reserve
Nature Reserve · 13.7km
Grundy Lane Forest Reserve
Nature Reserve · 14.2km
Unnamed (No.HA1634) Heritage Agreement
Nature Reserve · 14.2km
Telford Scrub Conservation Park
Conservation Park · 14.8km