By Steve Kretzmann Data visualizations by Yuxi Wang When he was 13 years old, Rudy Hanse joined the guppy development program offered by the Milnerton Canoe Club in Cape Town. There he learned how to paddle a canoe and swim.  For Hanse, the weekly outing to the Milnerton Lagoon was a way to escape the…By Steve Kretzmann Data visualizations by Yuxi Wang When he was 13 years old, Rudy Hanse joined the guppy development program offered by the Milnerton Canoe Club in Cape Town. There he learned how to paddle a canoe and swim.  For Hanse, the weekly outing to the Milnerton Lagoon was a way to escape the… 

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