Adeline Alyce Hill ...
"Addie" is 15 years old and is a sophomore at University High School in Tucson, Arizona. She enjoys helping others, studying the oceans, singing, and holding reasonably reckless sleepovers with her friends. Addie is a third-degree black belt at Kosho Karate and a former national karate champion. She plays the piano, debates Harry Potter scenarios, and is a truly caring older sister. In the world of scuba, Addie is a PADI certified Rescue Diver.

Christopher Langdon Hill ...
"Tiffer" is 14 years old and is a sophomore at City High School in Tucson, Arizona. He enjoys helping others, leaping into the oceans, backpacking, and doing work projects with his friends. Tiffer is a second-degree black belt at Kosho Karate and a former national karate champion. He also plays the piano and is a truly patient older brother. In the world of scuba, Tiffer is a PADI certified Rescue Diver and recently used his rescue skills in two separate rescues.

Alden Maura Hill ...
"Allie" is 10 years old and is in the fifth grade at Carrillo Elementary in Tucson, Arizona. She just passed all of her classwork and in-pool work for her Open Water scuba certification and CAN'T WAIT to get back to the Sea of Cortez for her qualification dives. Allie plays the piano, writes very "impressive operas", and is a brown belt in karate.

Bradford Benjamin Hill ...
"Bren" is 8 years old and is in the fourth grade at Carrillo Elementary in Tucson, Arizona. Bren is one of the world's fastest child snorkelers and LOVES nudibranchs. What is a nudibranch? Click here to learn more. Bren plays piano, joyfully makes his own comic books, and is a purple belt in karate.