That's not a tightrope, it's known as a slackline, usually comprised of a length of 1" Webbing, tied on to trees or posts and pulled tight, some climber friends of mine got me hooked a few years back, they all do it to improve their balance, the few things you need to make one can be obtained from any good climbing shop (10-15 metres 1" webbing, 3 carabiners, 2 slings and good balance are all you need)
This is just south of the Santa Monica Pier, at the old site of Santa Monica Muscle Beach, where there is all sorts of great equipment to play on for adults and kids alike. A very fun place. Come and visit... Sorry, my last name is not Hoops!!!
and yeah, a tightrope walker? What is this place??
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