Question
my lawn has developed moon like creators .they are not isolated but all over.never saw anything like this..please help. have not fertilized yet live in nj on the water...thank you very much

Answer
I am not familiar with NJ soil conditions but I believe that the craters may be caused by some physical condition occuring underground. If the 'water' you referred to is subject to tidal fluctation, then that is 'probable cause'.
I am sorry that I cannot be more helpful than that.