Howzit!!
Contact these guys and they will give you a contact in Kommetjie if you still interested.
Anchor Boats +27(021) 511 - 2134. Fax: +27(021) 511 - 2135.
Cnr. Carlisle & Bermuda Streets
Paarden Eiland Cape Town 7405 .I done my theory with this guy at his house in Kommetjie but still struggling to get some sea time to complete my 15Nmiles. Looks like you need to buy a boat first and teach yourself as the guys here are reluctant to assist or help.
Good luck