Getting the right travel insurance cover is even more important if you have a pre-existing medical condition or you are looking for travel insurance over 65. specialises in providing travel insurance for pre-existing medical conditions and travel insurance over 65.nce you enter the dates of your trip and declare any pre-existing medical conditions you will be asked if you want to add any additional travel insurance cover. You can add winter sports cover at this point.
Elevation, or geometric height, is mainly used when referring to points on the Earth 's surface, while altitude or geopotential height is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and depth is used for points below the surface.
For other uses, see Elevation (disambiguation) . Elevation histogram of the surface of the Earth â approximately 71% of the Earth's surface is covered with water. A sign at 8000 feet (2438 meters) in the San Bernardino Mountains. The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic system, vertical datum).