The SDI family celebrates its first year under the SDI One Dive Family banner and 30 years of growth and success. Originating from the TDI technical diving agency, SDI has expanded significantly and is now a leading name in recreational diving. Other important members of the family include ERDI, which focuses on public safety diving, and PFI, which promotes freediving. Together, these organizations create a diverse community that supports and enhances the diving experience for all its members.