[Johnny B.]

Neither the article or its pictures explained why a rocket landing in the ocean would need legs. Very confused.

I had the same question. HERE is the answer:

SpaceX's ultimate objective is to fly the first stage back to a vertical landing near the launch pad, but Musk said Sunday on Twitter that the Falcon 9 will return to water landings until the company can prove "precision control from hypersonic [through] subsonic regimes."

[Pecos]

Thanks. I read it too quickly.