To avoid altitude sickness, we recommend you learn how to prepare for high altitude travel. Not preparing properly increases your risk of getting altitude sickness and suffering from headaches, nausea, fatigue, lethargy and restless sleep. The best way to prevent altitude sickness is by staying well hydrated. We recommend aiming to drink about 1 gallon of water a day. Unfortunately, traveling is known for being a particularly dehydrating activity (as well as celebrating at weddings!). Additionally, coming a few days early and acclimating to the altitude is another alternative to preventing altitude sickness. Please reach out to Alpine Mobile Physicians if you are seeking medical assistance. Phone: (970) 376-8376 If you are having a severe emergency you can also go to the closest hospital, Vail Health located in Vail, Colorado or call 911.