The answer is in the gap - that little white line running
  through the middle. Keep a foot in the red and a foot in the
  blue, but the rest can stay in the middle. Watch out for those
  arrows though - they'll suck you in like a whirlpool. -Kenneth
  [1]11898912_939604319445127_8207804135067864057_nUdut

References

  Visible links
  1. http://icopiedyou.com/wp-content/uploads/2015/08/11898912_939604319445127_8207804135067864057_n.jpg