by Janie — Sum­mer through au­tumn is the time of year for ma­rine di­no­fla­gel­lates' famed light fes­ti­vals. If the con­di­tions are just right, the roll of an ocean wave or the push of a ka­yak pad­dle or the sway of your legs as you wade in deep­er is enough to set the wa­ters...