Join一 upcoming events being held in Mount Colah. Mount Colah is a peaceful and picturesque suburb located in the north of Sydney, Australia, nestled at the base of the Ku-ring-gai Chase National Park, known for its scenic bushland, waterfalls, and hiking trails, and offering a close-knit community, excellent schools, and easy access to public transportation, making it an ideal location for both families and outdoor enthusiasts.