What's a Floating Garden?
Apparently it's just a fancy name for an observatory in a skyscraper, which is where the teams were instructed to go find their next clue. Unfortunately for the other teams, but fortunately for dating couple TK/Rachel who had 3 hours to make up, the observatory didn't open until 10 am, which let TK/Rachel 'catch up' without having to do much.

'The Freak Out Factor is Unbelievable'
Before TK/Rachel could take advantage of the time that the 'floating garden' gave them, they would have to rein in their 'freak out factor' which led to some very early mistakes, like running around trying to find a real garden, debating about whether to go up the skyscraper or not and even running right past the clue box. As TK put it, their freak out factor was unbelievable, but they managed to calm themselves down before they made a serious error.

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