Mount Gambier is a picturesque city located in the southeastern region of South Australia, Australia. Situated on the slopes of an extinct volcano, it is known for its stunning natural beauty and unique geological features. The city is named after Lieutenant Colonel James Gambier, a British naval hero, and is often referred to as the "Blue Lake City" due to the mesmerizing blue color of its famous crater lake. One of the most prominent attractions in Mount Gambier is the Blue Lake, which changes color dramatically throughout the year. During the summer months, the lake transforms into a vibrant cobalt blue, creating a breathtaking sight. The lake is surrounded by lush greenery and offers various recreational activities such as walking trails, picnic spots, and scenic viewpoints.