Don't Look Down

Sony A77!!
Sony SAL 16-50 f2.8 @ 16mm, CPL
ISO 200, 1/200 @ f8
Glacier Skywalk, Icefields Parkway
This is through the glass floor and railing of the Glacier Skywalk just north of the Athabasca Glacier on the Icefields Parkway. I must tell you that taking that first step onto the platform is a bit disconcerting! I rarely look for non-nature comps but I thought this was pretty interesting and kind of fun to shoot. All comments welcome.>=))>