Below are a couple of option for you:
You can always search for more online. I hope this helps.
I was wondering whether you look for an organization that is international. You may want to check the Aquatic Exercise Association through this link http://www.aeawave.com/PublicPages/Calendars/AEAInternational.aspx.
I do not offer a certification class. But I do offer CECs in aquatic exercise for certified Group Fitness Instructors and Personal Trainers.
Interested instructors can check out my website at www.hawaiifitnessacademy.com . The CEC courses are under the “Fit Pro Cafe” tab, Beyond Basic H2O and HIH2O. I have been instructing elite athletes to post rehab clients in the water for over 30 years. If you are ready for a vacation, why not take a CEV. A Continuing Education Vacation to the Big Island of Hawaii.
I am a certified Group Fitness Instructor and Personal Trainer (with two college degrees and dozens of specialty certs). My courses have not been rejected by any NCCA organization to date.