You can quickly ruin a trip to Colorado by ignoring the sun. A clear sunny day in Colorado is very beautiful and inspiring, but the thin atmosphere at this altitude can give unprotected skin a bad sunburn in 30 minutes. Use SPF 30-50 sunscreen. Do not use tanning lotions as they will only make it worse.

Denver's high altitude (5,280 feet above sea level--thus, the "Mile High City") can cause first-time visitors some discomfort as they adjust to the thin air. Visitors should avoid rigorous activities and alcohol consumption for the first 24 hours or so, and drink plenty of water during your visit.  

Light Rail transit service is available in Denver, linking the Downtown area with the southeastern, southwestern, and western suburbs. Please consider Light Rail if you plan to drink downtown and stay in an outlying area. Downtown is a $3-$5 train ride away.  Click here for routes and fees.

In the winter, a local phenomena called "black ice" can cause driving accidents. Water on the roads can quickly freeze into a thin and invisible sheet of ice when the sun goes down, or even in a shaded spot durig daylight hours. It occurs on any paved street in the mountains, cities, or plains. Drive cautiously when water is present and the air temperature is below 40 degrees Fahrenheit.

Again--this is worth repeating--stay hydrated! The combination of Denver's semi-arid climate (very low humidity), ubiquitous sunshine (over 300 days a year), and the thin mile-high air requires visitors and locals to drink plenty of water.