Crescent International School. Crescent is a truly an outstanding school with a warm and welcoming atmosphere in a unique, charming and central campus in the heart of Sathon. Our mission is to ensure all children are afforded a top quality international education, no matter their background, and prepared for the diverse life experiences that await them after K-12 education. We offer an excellent academic programme built on the high standards of the globally recognized international Pearson Edexcel Curriculum.