A few years ago we went to Fernidina FL and a wave came up in knee dep water and crashed right over me It seemed to me that i was rolling under water for 30 minutes then when i got out of the water i ran to the beach house and laid around for the rest of the day .ON MY B-DAY !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!I found out i broke it about 2 weeks later