Understanding Altitude and Preparing for Your Mountain Vacation
Breckenridge sits at nearly 10,000 feet above sea level, which makes it one of the highest ski towns in North America. The views are spectacular, the snow is world-class, and the air is… a little different up here.
If you’ve never vacationed at high altitude before, here’s your friendly guide to what to expect, how to acclimate, and how to feel great during your trip — whether you’re coming to ski, relax, or join us for dogsledding or snowmobiling at Good Times Adventures.

Why Altitude Affects You (The Light-Science Version)
At higher elevations, the air is thinner — meaning there’s less oxygen. Not dangerously less, just different enough to notice.
What changes at 10,000 ft:
- With each breath, you take in about 30% less oxygen compared to sea level
- The air is much drier
- The sun’s UV rays are stronger
- Your breathing rate increases slightly
- Hydration becomes more important
Your body will adjust — but give it time and kindness your first day.
FUN FACT: It takes longer for water to boil at altitude, so make sure to plan ahead for those pasta feasts!
Before You Travel: Set Yourself Up for a Great Trip
These simple plan-ahead habits will help your body acclimate more smoothly once you arrive.
- Hydrate well the day before you fly or drive
- Get a full night of sleep before departure
- Avoid heavy alcohol the night before travel
- If you’re coming from sea level, consider planning a more relaxed first day
- Pack electrolytes — they help tremendously at high altitude
- If you’re prone to dry skin or sinus irritation, bring a good moisturizer or saline spray
PRO TIP: If you’re flying in, start sipping water on the plane. Cabin air is dry and dehydrating, and you’ll feel the altitude more if you land already depleted.
Altitude Sickness: What It Is (and Isn’t)
Most people experience:
- Mild headaches
- Slight fatigue
- Dry mouth
- Feeling winded more easily
- Restless sleep on the first night
This is normal and temporary. Symptoms improve quickly with hydration, rest, and pacing. True altitude sickness is uncommon in Breckenridge and is usually related to overexertion, dehydration, or drinking alcohol too early in your trip.
Hydration + Electrolytes (Your Best Altitude Ally)

Hydration is the single most important thing you can do at altitude — but water alone isn’t always enough.
Because you breathe faster and the air is dry, your body loses fluids and electrolytes more quickly.
Here’s what helps:
- Bring or buy electrolyte packets (LMNT, Liquid I.V., Gatorade, Nuun — all great)
- Sip them throughout your first 48 hours
- Aim to drink more than you think you need
PRO TIP: Electrolytes help reduce headaches, fatigue, and dizziness — and make acclimation much easier.
Oxygen Canisters: A Helpful Boost (Not a Cure)
You’ll see portable oxygen canisters in almost every ski-town shop. They’re not medical devices, but they can give a temporary boost if you’re feeling:
- Slightly tired
- Short of breath
- Headachy
They don’t cure altitude effects — but they can help you feel clearer and more comfortable while your body adjusts.
Many guests use them their first night or first morning.
PRO TIP: For those that may need a little more help alleviating symptoms, there are oxygen bars in town like The O2 Lounge or PS Oxygen Bar.
Over-the-Counter Supplements That May Help
These over-the-counter options are generally considered helpful at altitude:
- Iron (for people who are borderline low — improves oxygen transport)
- Magnesium (helps with sleep, hydration, and muscle relaxation)
- B-complex or B12 (supports energy levels)
- Electrolyte minerals like sodium/potassium
IMPORTANT NOTE: None of these replace medical advice, and you should only take supplements that are already safe for you personally. But many travelers report they feel better with some combination of the above.
Your First 24 Hours: Take It Easy

We know you’ll be excited to arrive in the mountains and jump straight into the adventure — it’s hard not to. But do yourself a favor and ease into things your first day. The mountains have plenty of joy to offer that doesn’t require equipment or high energy exertion.
Think: sipping hot chocolate by the fireplace, wandering through town to see the Christmas lights, or hosting a game night at the Airbnb while snow falls outside. It’s all part of the Colorado magic.
Let your body ease into the elevation:
- Hydrate consistently
- Add electrolytes
- Eat nourishing meals (your metabolism works harder up here)
- Walk instead of hike
- Hold off on alcohol
- Rest as needed
By Day 2 or 3, most people feel amazing — energized, acclimated, and ready for whatever mountain adventure is calling next.
Sun + Weather: Stronger Than They Look
At 10,000 feet, the weather has a personality of its own — and it’s a lot more powerful than many visitors expect. The sun shines brighter, the air is drier, and even on cold days, you can feel the warmth the moment you step outside. And because snow reflects sunlight, you’re basically getting sunshine from above and below.
It’s beautiful… but it can also sneak up on you if you’re not prepared.
Here’s how to stay comfortable:
- Wear sunscreen, even on cloudy days
- Keep SPF lip balm handy (your lips will thank you)
- Protect your eyes with sunglasses or goggles
- Dress in layers — mountain weather loves to change its mind
A little preparation goes a long way in keeping you warm, comfortable, and ready to enjoy every minute of the high-alpine sunshine.
Read more about what to wear in the mountains in the blog post Tips for Dogsledding & Snowmobiling in Colorado
Kids at Altitude

Kids are adventurous, resilient, and usually the first ones to fall in love with the mountains — but they’re also the first to forget to drink water. At high altitude, little bodies dehydrate faster, and the results can look a lot like… well, classic kid behavior.
Think: sudden grumpiness, getting tired out of nowhere, or melting down even though nothing is wrong… except they probably need a sip of water and a quick snack.
To help them feel their best:
- Offer water often (Gatorade-like beverages can be a great treats that also offer better hydration)
- Pack easy, familiar snacks (the kind you know will save the day)
- Keep the first day mellow and flexible
Once kids acclimate — usually within 24 hours — they tend to rebound with even more energy and excitement for exploring the mountains.
Looking for more family-friendly activities? Check out our Guide for Traveling with Kids in Breckenridge.
Sleep Can Be a Little Weird (But It Gets Better!)
One of the quiet surprises of high altitude is how it affects sleep. Many visitors notice:
- Restless tossing and turning
- Waking up more often during the night
- Dreams that feel unusually vivid
- Feeling warmer than usual
This is normal and temporary — your body is adjusting its breathing rhythm as it adapts to the thinner air. Most people sleep far better by the second night, especially with good hydration and a gentle first day.
Once You’re Rested: Plan Your Adventures with Intention
After your body has had a little time to adjust — and after a solid night’s sleep or two — you’ll feel ready to take on the bigger, more thrilling parts of your mountain vacation.
That’s the perfect time to dive into activities like:
Your energy will last longer, you’ll feel stronger, and you’ll enjoy the views so much more once you’re properly acclimated. Trust us — the mountains are even better when you give yourself time to settle into them.
Preparing for Your Tour at Good Times Adventures

If your plans include joining us for a tour, your activity will take place between 9,000 and 12,000 feet, depending on conditions.
To feel your best—and yes, we know we sound like a broken record—make sure to:
- Hydrate well the night before
- Add electrolytes in the morning
- Eat a good breakfast
- Dress warmly in layers
- Arrive early so you’re not rushing
- Let your guide know if it’s your first time at altitude
Our guides pace the tour for comfort — not speed — so you can enjoy the mountains without overexerting.
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Vacation at 10,000 Feet—A Little Planning. A Lot of Fun.
Your body is built to adapt to high altitude — it just needs a little time and care along the way. With good hydration, a few electrolytes, and a mellow first day, most visitors feel fantastic once they settle into mountain life. A little planning truly goes a long way toward making your vacation more comfortable, more enjoyable, and a whole lot more fun.
Welcome to Breckenridge.
You’re going to love it up here.
And, as always, you can follow along on Facebook, Instagram, and TikTok at @goodtimesbreck for more mountain shenanigans!