We spent one night on the Big Island to go check out Volcanoes National Park. This is what one of the vents looked like at night:
|Glowing steam from a volcano!|
The photo doesn't come anywhere close to doing it justice due to the limitations of my smartphone camera and night-time lighting conditions. Unfortunately, as cool as it would have been to have gone running in the national park, it was way too dark at night to do so safely, and the next morning was pretty busy with hiking short trails.