To my knowledge there are no Splash Dogs CLubs in the Houston area. THere is an event being held at Pearland the end of March. It is being held in conjunction with Paws in the Park. Feel free to bring you dog out and try dock jumping. There will be time between waves for you to practice with your dog and you can compete also. Not sure what the charge for practice dock time is, but I'm sure it is minimal.
I live in San Antonio and wish there was a club in the areas.