Suzanne0918, I am glad to hear I am not in for a mediocre experience. Thanks for the pick me up. After not diving blue water for years, I am ready.
I did my training in Utah, Washington, and Hawaii. The only training available in Rexburg is through BYU-Idaho Continuing Eduation. They contract with Inland Scuba out of Idaho Falls. Tell your brother and nephew to take up scuba. There are several divers in the area they can hook up with for trips etc.