Rare and amazing, the delightful purple is present from the sand of the beach to the depth of the water.
The sand of the violet Pfeiffer Beach has this purple shade due to the presence of manganese garnet particles.
Purple sea snail
Purple sea snail or Janthina spends almost its entire life at the surface of the ocean. It secretes a layer of chitin to trap air bubbles that help it to float.
The purple sea star, or Pisaster ochraceus, can be found in the waters of the Pacific Ocean.
Jellyfish sting effects may range from no effect to extreme pain or death. It may be necessary to call for medical assistance. The first remedy is vinegar, or salt water. Rubbing the wound or using alcohol may have negative effects.
source: Lloyd K. Barnes
Purple soft corals