More interpretation for Arch can be found here.
Remarks: This post has been automatically published as the schedule I’ve set before my hiking trip (19-22 Sep 2013). At the time this post is published, I should be at Phu Soi Dao National park and I should be very tired after long climbing up to where we could stay overnight in tents. I don’t think I could visit your blogs or respond to your comments during this trip since the internet is hardly available around that area. See you again when I get back.