Scuba/SSI

Scuba Schools International (SSI) - http://www.divessi.com/

""Scuba Schools International's" was started in 1970 in the USA and has expanded to include more than 30 Service Centers and over 2500 International locations in more than 110 countries. SSI is the only training organization in the diving industry, which requires Dive Professionals to work with professional Dive Centers/Dive Resorts. Headquartered in Germany, SSI training facilities are particularly widespread in Europe, North America and South East Asia. www.divessi.com)"

Cross Over
Q: I have done my Open Water Diver course with PADI, can I do my Advanced Course with SSI or the other way around? 

A: Yes, you can cross between PADI and SSI as much as you like for the recreational dive levels. Their levels are quite similar and certification of another dive organization is totally accepted. As noted all standards are set forth by the RSTC (Recreational Scuba Training Council).

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"Wicked Diving offers professional level courses: if you would like to switch from PADI to SSI – we offer an Instructor Crossover course several times a year"