*Note: This is a guest post submitted to All Things Wanderful by Say Insurance, an all-online car insurance provider.

Mountain vacations offer plenty of fantastic things, like scenic drives and crisp, clean air, but for some people, a mile-high getaway can also bring altitude sickness. Also known as acute mountain sickness or hypoxia, it can affect anyone who isn’t acclimated to their elevation (especially if their home altitude is closer to sea level), and usually occurs at elevations above 8,000 feet.

Symptoms can include headache, dizziness, nausea, vomiting, fatigue, and more, and while in some cases it’s simply inconvenient, it can be quite dangerous. You can reduce your risk of altitude sickness by being mindful of your rate of ascent, sleeping at a lower elevation as you climb, and avoiding too much exertion for your first 24 hours at high altitude. If you’re serious about keeping your risk of altitude sickness at bay on your next vacay, read on for helpful tips.