Ultimate Day Trip Guide to Great Sand Dunes National Park in May

Visiting Great Sand Dunes National Park in May offers a unique chance to explore one of Colorado’s most striking natural wonders without the summer crowds. The towering dunes, the refreshing Medano Creek, and the surrounding landscapes create an unforgettable day trip. I recently spent a day there in May, and I want to share everything you need to know to make the most of your visit.

Getting There and Travel Time from Major Colorado Cities

Great Sand Dunes National Park sits in southern Colorado, near the small town of Alamosa. Here’s a quick look at travel times from some of the state’s major cities:

• Denver: About 3.5 to 4 hours (230 miles)

• Colorado Springs: Around 3 hours (160 miles)

• Fort Collins: Roughly 4.5 hours (260 miles)

• Pueblo: Approximately 2.5 hours (130 miles)

  
  

The drive itself is scenic, especially as you approach the Sangre de Cristo Mountains. Starting early in the morning helps you avoid traffic and gives you more time to enjoy the park.

Exploring Medano Creek in May

One of the highlights of visiting in May is Medano Creek. This seasonal creek flows at the base of the dunes, fed by snowmelt from the nearby mountains. It usually starts flowing in late April or early May and lasts through early summer, depending on the snowpack.

Medano Creek is shallow and perfect for wading or splashing around, especially if you’re traveling with kids or want a refreshing break after hiking. The creek’s unique “surge flow” creates rhythmic waves that move downstream, a rare natural phenomenon. Walking along the creek’s edge, you’ll notice the contrast between the cool water and the warm sand.

Hiking the Dunes: What to Expect

Hiking the dunes is a must-do activity. The tallest dune, Star Dune, rises about 750 feet above the valley floor, offering panoramic views of the park and surrounding mountains. The hike up can be challenging because the sand shifts underfoot, making progress slower than on solid ground.

Here are some tips for hiking the dunes:

• Start early to avoid the midday heat and strong sun. May temperatures are usually mild but can get warm by afternoon.

• Wear sturdy shoes or hiking sandals that can handle sand. Avoid heavy boots that fill with sand.

• Bring plenty of water—at least 2 liters per person for a few hours of hiking.

• Use sunscreen and wear a hat to protect yourself from sun exposure.

• Pace yourself and take breaks. Walking on sand is more tiring than on a trail.

  
  

If you prefer a shorter walk, try the Dunes Overlook Trail. It’s a 2.8-mile round trip with less sand walking and great views of the dunes from above.

What to Bring for Your Day Trip

Packing the right gear makes your visit more comfortable and enjoyable. Here’s a checklist based on my experience:

• Water (2+ liters per person)

• Snacks or a picnic lunch

• Sunscreen and lip balm with SPF

• Hat and sunglasses

• Comfortable shoes suitable for sand

• Water shoes or sandals for Medano Creek

• Lightweight layers (mornings can be cool)

• Towel and change of clothes if you plan to play in the creek

• Camera or smartphone for photos

• Small backpack to carry your items

  
  

Cell service is spotty in the park, so download maps or guides beforehand. Also, there are no food services inside the park, so bring everything you need.

Extending Your Trip and Nearby Attractions

If you want to turn your day trip into a longer adventure, there are several nearby options:

• Zapata Falls: Just 7 miles south of the dunes, this waterfall is a short hike and a refreshing stop. The trail can be slippery, so wear good shoes.

• San Luis Valley: Explore the valley’s unique landscapes, wildlife refuges, and small towns like Alamosa and Crestone.

• Hiking in the Sangre de Cristo Mountains: Trails like the Willow Lake Trail or the Humboldt Peak Trail offer more challenging hikes with alpine scenery.

• Visit the Colorado Gators Reptile Park: Located in Alamosa, it’s a quirky stop to see alligators and other reptiles.

• Stargazing: The park is a designated International Dark Sky Park, making it perfect for night sky viewing if you decide to stay overnight nearby.

  
  

Camping is available inside the park if you want to extend your stay. The Medano Campground opens in late May or early June, so check availability if you plan to camp. The Zapata Falls Campground just outside the park is another good option.

Final Thoughts on Visiting Great Sand Dunes National Park in May

Visiting Great Sand Dunes National Park in May offers a perfect balance of mild weather, flowing Medano Creek, and fewer crowds. Whether you want to hike the dunes, splash in the creek, or explore nearby attractions, this destination delivers a memorable outdoor experience.

Plan your trip with the right gear, start early, and take time to enjoy the unique landscape. If you have more time, explore the surrounding area to get a fuller sense of southern Colorado’s natural beauty.