Thaaragai Aarathana is an 8-year-old scuba diver from Chennai who is also an environment enthusiast at a very young age. She is on a mission to clean up ocean beaches, not only the shore but also underwater and she uses scuba diving to accomplish that. Aravind Tharunsri is her father who is also a scuba diving expert and the father and daughter duo are on a mission to raise awareness of marine pollution.