Mr. Rajesh Kumar, Neha Thakur , Vijay Thakur
In past previous years, the demand of underwater communication increases due to interest and underwater activities of human being. Underwater communication done with the help of sonar waves, electromagnetic waves and acoustic waves, these three waves are different in nature. This paper present an overview of sonar and acoustic waves’ underwater communication .In this it is also show acoustic wave communication is better than sonar wave communication. Addition with this the factors which affect the acoustic wave communication also explained.