if you dug a whole on a sandy beach, 2ft squared by 4ft deep?

[thetug]

how many times would the tide have to come in and out for it to completely dissapear?

 

[D]

I will go to the beach now and dig and tell you when I get back.

 

[mommy-to-be]

probably once. it's amazing what a tide coming in and going out can erase.

 

[Myce Elffe]

If I dug a whole what?

If you mean a "hole" ... the tide would fill it up the first cycle.