My gf and I were snorkeling in front my rental property, in approx 9 feet of water, near an large mixture of plants and coral a 6ft or longer, black and white banded snake swam towards us with its mouth wide open. The inside of its mouth was white. The lady landlord said these snakes are aggressive when pregnant. A spear fisherman said to ignore it, he said the snake may bite if you touch it by accident. He said once a snake was on his leg and it swam away without biting. Ive been in the water 3 times since Ive purchased my prescription googles and all 3 times we have seen this type of snake. Any insight regarding this matter will be appreciated.