I've shown pictures in the past from Washington Oaks State Park, but only from the inland side - there is a second strip of park that runs over to the ocean and contains wonderful coquina rock formations. To my knowledge coquina is only found along this one strip of Florida's coastline in two counties - maybe 100 miles at most. Just a perfect combination of the right type of sea shells, sand, and wave action. There isn't much of it left, so being able to access it in nature is a real treat. There is another large outcropping a few miles further south but is on land privately owned by an apartment complex so you can't get onto it to view very easily.