raid adv 35

Greetings folks, quick question. Having briefly looked at what info is available on the internet does anyone know the difference/value of differentiating between the RAID Explorer 30 and Advanced 35 courses? Obviously other than having an advisory bottom limit of either 30 or 35 meters what...

I have had a dream of living someplace tropical and teaching scuba diving for most of my life. As you may have read in the introduction, this began from TV shows I used to watch as a child. The time of dreaming had come to an end and it was now time to catch the dream; to go from open water...