Once you register, you’ll get free access to the online snorkeling course, which doesn’t include practical training sessions. To sign up, you’ll need to choose a local SSI Training Center before submitting the form. By submitting the form, you agree that your local SSI Center may contact you with an offer for their hands-on snorkeling course, but you are not required to join. You don’t need to be an expert swimmer to take the course, but you should feel comfortable in the water.