Apparently the sharks were away at the time.

Ocean Beach has gotten lost in the muddle of development along the coast of Dade County. The island is now a managed developed area and primarily all private.
The island is here:

This photo is from ‘The Miracle of Miami beach’, a book, unfortunately not available right now. It was produced by one of thee builders of Miami, J.N. Lummus.The book is in the Swampy library and would make a wonderful addition to anyone wanting to understand the development of Dade County. Hopefully it is available again soon.