Two of the four bonfire pits located south of the boat launch ramp at Shelter Island, San Diego.  Dingies piled on the sand, utilized to reach the boats tied to mooring buoys just off shore.
<a href="//commons.wikimedia.org/wiki/User:RightCowLeftCoast" title="User:RightCowLeftCoast">RightCowLeftCoast</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>