Sorry, you do not know what you are talking about. At low tide you can see the sea floor and there is nothing to float on. You have hit the bottom, so to say.
Oh yes, I can just see all those puzzled dock workers standing on the edge of the port wondering why they didn't think to build the port in a place where there was enough water to float on at any tide level. ...
You really are an idiot, aren't you?
I have a distinct feeling this Apollohoaxforum is run by some bored, retired NASA hoaxsters with bad pensions and nagging wifes or husbands in some lousy subdivision where most houses are empty.
And BINGO! There it is. The usual parting shot of a dissatisfied hoax believer who can't understand that reality doesn't conform to his expectations because they are wrong, and that many people understand the world better than they do.
So, bye, bye. You are not really fun.
Never fun to be told how absurd you are, is it? Please do let the door hit you on your way out.