Amoid indoor sunlamps or tanning booths. Know the Ways of the Rays you may get burned on a cloudy day. And the sun's rays can reach down into three feet of water. Avoid the direct sun at midday, as the sun's rays are strongest between 11 a.m. and 2 p.m. And beware of high altitudes - there is less atmosphere to filter out the ultraviolet rays.
Snow reflects the sun's rays, too.
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