Benefits For years, Sandi and Herb Holst have taken newly certified and seasoned divers and helped them achieve a higher comfort level, enhanced their skills and guided them towards safe and incident free diving. Why you may wish to invest in Skills Development with DiveSafari: We dive with you! Your own private instructor(s) at your disposal Receive an onsite evaluation of your current diving skills Learn how you can streamline your skills Achieve the level of skill that is your own personal comfort zone Our success rate for achieving goals is 100%