Go for it, as long as your in good shape and use your head, it's a nice way to spend a few hours. As for boat traffic it's like crossing the street, look both ways and like mom told you don't play in the street. Do not attempt it on a windy day or at night. You will need some type of anchor, a cinder block and some rope will work. Find a sandy area about 4 feet deep to anchor (this also helps getting back into the kayak), do not anchor in the coral. Stay close by your kayaks. Stay on the inside of the reef, it can get rough on the outside, also watch for cuts in the reef, where when the tides going out, the current can get strong. Most important don't go alone, wear your PFD and let someone know were your going and when you plan on returning. But make sure you do at least one boat trip with a guide, they will take you to some really nice spots.