Great Sand Dunes National Park & Preserve
4.7(12K)google
4.7(242)yelp
DesertGeology
Overview
Great Sand Dunes National Park & Preserve, nestled in southern Colorado, protects the tallest sand dunes in North America, rising over 750 feet (220 meters) high. Set against the dramatic backdrop of the snow-capped Sangre de Cristo Mountains, the park features a striking ecosystem where massive dunes contrast with alpine tundra, dense forests, and wetlands. Visitors flock here for thrilling adventures like sandboarding and sledding, wading in the seasonal Medano Creek during spring and summer, and experiencing world-class stargazing at this designated International Dark Sky Park.
Practical Info
Suggested Duration1 day
Best TimeMay to June or September to October is the ideal season. Visiting during early morning (within an hour after sunrise) or late afternoon at sunset is highly recommended. The low-angle sunlight creates dramatic shadows across the ridges, and you will avoid the scorching midday summer sand temperatures which can reach 150°F.
Getting ThereDriving is essential. From downtown Alamosa, take US-160 E eastward for approximately 14 miles, then turn left at the junction with CO-150 N. Drive straight north on CO-150 N for about 16 miles to arrive directly at the park's main entrance station.
Travel Tips
- Summer sand surface temperatures skyrocket to 150°F (65°C) by midday, posing severe burn hazards. Closed-toe hiking boots or athletic shoes are strictly mandatory—never wear sandals or flip-flops—and sandboarding activities must be concluded before 10:00 AM or delayed until after 4:00 PM.
- During peak Medano Creek flow in May and June, the main dunes parking lot completely fills by 9:00 AM. To secure a spot near the primary dunes access point, arrival before 7:30 AM is critical, after which incoming traffic experiences hours of gridlock.
- Venturing into the backcountry or climbing High Dune means zero cellular signal, and intense wind shear erases footprints within minutes. You must download offline GPS topographic maps in advance, and staying atop exposed dunes during afternoon thunderstorm windows is strictly prohibited.
Reviews
Positive
- The towering dunes against the snow-capped mountains offer a stunning visual, and sledding down them is incredibly fun.
- Medano Creek is perfect for kids to splash in and camp by during late spring when the water levels are just right.
- The night sky here is breathtaking; with virtually no light pollution, you can see a perfectly clear Milky Way.
- The visitor center has great educational exhibits and accessible pathways for strollers and wheelchairs.
Heads up
- The sand gets scalding hot by midday, making sandals unusable; enclosed sturdy shoes are a must.
- When the wind picks up, blowing sand gets into your eyes, mouth, and electronics, requiring goggles and masks.
- The parking lot fills up completely before 10 AM in peak season, causing long waits under the hot sun to enter.
- There is zero shade on the dunes and restrooms are only at the base, making the steep climb physically exhausting.