Three of us tried to go to Henderson Beach State park in Destin yesterday and could not even get out of the car for the toxic air blasting in our faces off the ocean from the red tide. Its invisible in the air. As for the water, its not red, more like diluted dark green where the waves break. I describe the feeling as one of the following: 1) like microscopic shards of glass or poison are going into your lungs. 2) like you inhaled microscopic airborne acid particles. 3) Like microscopic jellyfish are stinging inside your lungs. You start coughing and have trouble breathing and cannot catch your breath. No I don't have asthma and I am a non-smoker. Its heartbreaking to not be able to enjoy such a beautiful coastline and not see the turquoise waters.