I am an underwater photographer who brings groups to La Paz annually to photograph whale sharks, sea lion, and other marine critters.
We have dove with five or six operators in La Paz, and Club Cortez is one of the two best operators. The have pangas for smaller groups, and a larger twin outboard fishing boat that can hold up to 12 divers.
We are able to dive our own profiles, and generally do not use a dive master, unless we are at El Bajo. This past trip there were hammerheads at El Bajo.
The other good dive sites are: Los Islotes (sea lion, blennies, jaw fish, eel); Swanee Reef (eel, tropicals, Gardner eel); La Reina (longer trip/current, but sometimes large bait ball, eel, tropicals); Salva Tierra wreck (wreck, eel, garden eel, tropicals).
If you drive here, don't be put off by the interesting third world approach: boats and operator are quite good.
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