Arches National Park is a desert land of red rocks, containing the greatest population of natural arches in the world. But beyond just the arches, the park is a wonderland of carved rock - fin canyons, monuments, monoliths, spires and hoodoos - with expansive canyon and mountain backdrops accenting the formations in the foreground.
The park is a photographer's playground; the sunrise and sunset turn the red and ochre formations into glowing ruby and orange, contrasting with the darkening blue sky. The weird formations take on an even more otherworldly character for these brief moments of the day.
Off-season the park is usually not crowded, and the adventurous person can take one of the primitive trails to escape into desert isolation for a short time. Edward Abbey's "Desert Solitaire" was written about the solitude he found in the park (before they paved the road and Moab became a popular tourist destination) - with some effort, you can feel a little of what he experienced and immerse yourself in the vast beauty of this place.