As a former swimmer, 700 yards in 12 minutes is 2.33 lengths per min, or 25 seconds a length sustained for 28 lengths.
That's pretty aggressive for anyone who doesn't swim very often. Even a relatively fit person who doesn't swim all the time would have trouble hitting that.
Even at my peak I could probably only pull 18s/length, and definitely can't sustain it for 28 lengths.
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As a former swimmer, 700 yards in 12 minutes is 2.33 lengths per min, or 25 seconds a length sustained for 28 lengths.
That's pretty aggressive for anyone who doesn't swim very often. Even a relatively fit person who doesn't swim all the time would have trouble hitting that.
Even at my peak I could probably only pull 18s/length, and definitely can't sustain it for 28 lengths.