Hiking to the Window in Ventana Canyon

An evening pause: My posting on Sunday will be light until the evening, as Diane and I will be doing a 13.2 mile hike up Ventana Canyon to a giant natural bridge called the Window. This canyon is in the Santa Catalina mountains that overlook Tucson. These mountains are quite rugged, with some intense elevation gain in a very short time, comparable to the Grand Canyon. For this hike we will gain 4,000 feet in 6.6 miles.

Below is a video of this hike but only going about halfway up the canyon.

Hang Son Doong (Mountain River Cave) in Vietnam

An evening pause: As I have been out today doing survey work for a cave project of which I am the cartographer, I thought this video of Hang Son Doong (Mountain River Cave) would be appropriate.

Note that this cave is definitely not the largest in the world, as is often claimed. It appears to have the largest single room of any known cave, but the cave itself is relatively small at about four miles, compared for example to Mammoth Cave in Kentucky, which is the world’s longest cave at 400 miles.

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