We visited Great Sand Dunes National Park in Colorado:

Mountains and sand dunes:

The picnic area parking was full of people who had inconsiderately parked there then gone to the dunes, but we found an empty amphitheater as an alternative place to have our picnic lunch:

With a better view of the dunes, anyway:

The visitor center was being renovated:

So they had a temporary visitor center building set up:

Jenn enjoys collecting cancelation stamps:

And smashed pennies (with a couple of fascinated little girls watching her):

The temporary gift shop:

Then we headed out to the sand dunes:

A selfie:

We rented a couple of sand sleds from the KOA RV park:

Sand dunes:

Jenn:

Sand dunes:

Jenn preparing to slide:

Me with a sand sled:

Jenn waxing her sand sled:

Selfie:

A video of Jenn sliding down a sand dune, and wiping out at the end:

Sandy Jenn:

Kite:

Beard in the wind:

Grasses and rainy mountains:

Log and dunes:

The dunes with the stream in the foreground:

Impressive sand dunes, and a fun experience.