15 Photos That Will Make You Think Twice About Going Swimming Share it with your friends! Facebook Pinterest Twitter Email Tumblr Reddit Flipboard Copy Link Before you head off to go swimming in the sea or the river with your friends, you should probably see this. Here are 15 dangerous things which, unless you’re careful, you could encounter in the deep. Stay alert! Share it with your friends! Facebook Pinterest Twitter Email Tumblr Reddit Flipboard Copy Link