This image is not Photoshopped. I used colored glow sticks to light up the caves.
The Wind Caves are accessible from the northern end of Split Mountain. The trailhead is marked on Google maps. A high-clearance vehicle is a must as the road inside Split Mountain is littered with medium and large rocks. You should be OK with 2WD as long as you don't stray from the established path. My Titan has 4WD, but I didn't need to use it. Once you get to the trailhead - which is marked with a sign reading "Wind Caves", it's a moderate one mile hike up and over a hill to the caves.
A 22° halo is a halo, one type of optical phenomenon, forming a circle 22° around the sun, or occasionally the moon. It forms as sunlight is refracted in hexagonal ice crystals suspended in the atmosphere. As the light beam passes through two sides of the prism forming a 60° angle, the angle of minimum deviation is almost 22° (namely, 21.84° on average; 21.54° for red and 22.37° for blue). This wavelength-dependent variation in refraction causes the inner edge of the circle to be reddish while the outer edge is bluish. A 22° halo may be visible on as many as 100 days per year.