I too had thought that originally. With that white "sand", I was thinking that or Pos Chiquito. The only docks left on Rogers Beach though are at the southern most end and they would not have the same back drop.
Attached is an aerial of what might be a dock with the white sand/coral in the background?
Snorkel Mangel Halto, day or night with a waterscooter. Check out our website. E-mail Stuart at firstname.lastname@example.org or call Stuart local: 745-7459 Or visit: www.arubabobsnorkeling.com 33rd trip to Aruba. June 19. for 2.5 months. 34th trip Nov 4th thru March 23, 2014