Okana is a future city presented by Carol Tang, Alwin Ng, Chloe Teh, Danica Gan, and Dana Kan. It focuses on individual artistic and kinetic potential with a pentagonal shape. Security is maintained through intelligent surveillance systems like face recognition and radar, as well as emergency alarms and security forces. The city utilizes green energy solutions like solar, hydroelectric, and waste energy. Sustainable waste management includes reducing, reusing, and innovative approaches like pyrolysis. Green transportation and disaster preparedness emphasize environmental protection.