Annual bridge building competition

Caption 1: It is going to hold isn't it? I won't get wet?
Caption 2: Hey we are quite cool!
Caption 3: Shrieeeeek
LARGE for more smiles.

The Engineering students do this every year. The idea is that it should hold for two people but break when the third gets on. This one took four to break but when it went it was quite spectacular!

News article for more info, rationale and video.
Last year's competition.