Blue Lake Reserve

Blue Lake Reserve
Blue Lake Reserve
Blue Lake Reserve
Blue Lake Reserve
Blue Lake Reserve


Walk around the perimeter of this stunning cobalt-colored crater lake and check out viewing platforms overlooking Mount Gambier’s precious water source.

The Blue Lake Reserve reflects some of Mount Gambier’s fascinating volcanic history in its magnificent sapphire-colored waters. Created during volcanic events millennia ago, the Blue Lake now contains Mount Gambier’s pure drinking water and some of the town’s most spectacular views. Stroll around the lakeside or join a guided tour to learn about the lake’s mysterious colour and geological history.

Make your way around the relaxing 2.2-mile (3.6-kilometre) trail that loops the boundary of the lake. During your 45-minute walk, you will come across several viewing platforms at different points along the trail, which show the craters, tunnels and valley formations in Mount Gambier’s landscape. Stroll through an underpass with the Blue Lake on one side and Leg of Mutton Lake on the other. Look into the pristine waters of the lake, which are a deep cobalt colour between November and March. The bright blue fades to steely grey in the winter months. It is believed the warmer summer temperatures affect the hue of the lake.

Join a guided tour to learn about the lake’s intriguing formation and the history of the surrounding landscape. The Aquifer Tour brings visitors close to the water’s edge and explains the lake’s history, geology, folklore and Aboriginal cultural heritage.

Bring a picnic to enjoy at the viewing platforms or the woodland reserve on the lake’s eastern banks. You can also stay overnight in the Blue Lake vicinity by booking your place at a nearby camping ground, caravan site, holiday cabin or cottage. While in the area, be sure to check out the Valley Lake crater and the Leg of Mutton Lake crater.

Blue Lake Reserve is less than a mile (1.5 kilometres) from central Mount Gambier. Walk from Mount Gambier Railway Station to the Blue Lake in 20 minutes. The lake is free to visit at any time of the day however, tour fees may vary. Swimming is not permitted at any time. Free parking is available at one of the lake’s northerly lookout areas.

Popular places to visit


Top Blue Lake Reserve Hotel Deals

The Commodore
The Commodore
4 out of 5
Corner of Jubillee Highway and Penola, Mount Gambier, SA
The Commodore
Presidential Motel
Presidential Motel
3.5 out of 5
152 Jubilee Hwy West, Mount Gambier, SA
Presidential Motel
The Henty
The Henty
3 out of 5
96 Jubilee Hwy E, Mount Gambier, SA
The Henty
The Barn
The Barn
4 out of 5
747 Glenelg River Road, Ob Flat, SA
The Barn
Mount Gambier Hotel
Mount Gambier Hotel
3.5 out of 5
2 Commercial St West, Mount Gambier, SA
Mount Gambier Hotel
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.

* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages. Book Flight + Lodging, save up to 100% of flight price - Savings based on flight + lodging package prices as compared to the price of the same components available for booking separately before all discounts and rewards applied. Your bundled savings cover up to 100% of your flight. Savings vary based on origin/destination, length of trip, stay dates and travel suppliers. Savings not available on all flight + lodging package bookings.