Long enough ;)
Waaaaaaaaaaaaaaaaater and islans and rocks and many many many many other things.
It is mostly carbon dioxide, 97 %, at a pressure 90 times that of earth's atmosphere at sea level.
Venus has a very dense atmosphere, with high clouds that block the surface from view.
The atmosphere of Venus consists mainly of carbon dioxide, and a smaller amount of nitrogen. The thick cloud cover is composed of sulfur dioxide and sulfuric acid droplets. Because of the dense atmosphere, the surface temperature ranges from 750 to 930 degrees Fahrenheit (398 to 498 Celsius). The surface pressure is 90 times that of Earth. That's like being one kilometer (over half a mile) under the ocean. Venus does have an atmosphere. It is made up of mainly carbon dioxide along with sulfuric acid clouds that surround most of the planet. Venus atmosphere is made of 96% carbon dioxide with most of the rest being nitrogen.