This is Geyisitong, a when be located in France " mad highway " , because of highway two side are seawater, change as tide, 2 paragraphs of time are only OK in a day be open to traffic, other time, this highway " flood " in seawater. This highway is bay of F of join Burn ё and Noirmoutier isle, if you want to drive from above through, a few hours that are driven before the tidewater of road both sides did not rise only or after seawater is refluent, other time, the place that this highway is in 13 feet under ocean wave. 1701, this channel that forms naturally appeared for the first time on the map, it is connective France mainland and Noirmoutier isle at that time, 1840, this passageway begins formal be open to traffic to perhaps allow equestrian through. Now, this highway has about 2.58 miles long. (add up to 4.2 kilometre to grow about)You had thought, encounter the byway of such not a second is to be lost again with respect to the traffic jam of very irritated heart originally, what kind of occasion is this? For safe for the purpose of, in viatic both sides vertical stroke has a lot of directive cards, tell people when to pass relative safety. Because,be probably of this passageway " unbridled sex " , attracting lover of a lot of adventure every year. Need a consideration besides oneself safety of course, once encounter briny flood, estimation love a car also one cannot say for sure. Look, this did not master good time namely " adventurer people " , still have in viatic both sides of course not little " safe tower " , people can stand above wait to come to help or waiting for seawater refluent. Once love car is wided,do not pass, the thing that is have no alternative then. Look, this ability is this highway a day in the condition of majority time is breathed out. I am thinking, can be many good cars scooped up in the seawater of highway both sides? !