North Liberty, IA

Meet our team

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Ryan Oestreich

Area Director
Independent Open Water Diver Instructor

As a level 5 diver, I enjoy helping teach students about the awesome sport of diving. Diventures is the reason I am a dive professional, have developed skills and gained experience diving. I love being able to share what I learn with our customers.

Phone: 417.883.5151
Email: [email protected]

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Sheryl Tucker

Aquatics Experience Manager

I started swimming at the age of 9 because my parents believed strongly in learning the life skill of swimming. The swim lessons had the unintentional consequence of me falling in love with the sport. I soon joined swim team, to National team, high school swimming, college swimming, to coaching at the premiere club, SwimMAC. I continued to coach opposite running our anesthesia practice and see myself always involved in the sport of swimming, water, and leadership. A great combination!

Email: [email protected]

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Olivia Smith

Scuba Experience Manager

Olivia grew up in Iowa on the Mississippi River, where her love for all things aquatic first began. She obtained her open water certification in 2017 and is now a Divemaster, with hopes of becoming an Assistant Instructor. Throughout the years, she has gained a plethora of scuba knowledge and experience. Olivia chose to join the Diventures team in order to spread her passion for diving and aquatic life with others.

Email: [email protected]

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Angie Fuller

Assistant Instructor Trainer

Angie’s love for diving started with her dad, a Navy diver in Vietnam, teaching her how to snorkel in their swimming pool. After her first successful pool dive, she was hooked. She is a level 8 diver. Angie and her husband love sharing their passion for diving with others. Her favorite sea creature is the seahorse, and her latest focus has been on digital videography and capturing the action to share with others back on land.

Phone: 319.665.2741
Email: [email protected]

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Anna Schrock

Scuba Experience Lead

Anna is a new diver. She recently did her first pool dive and loved every second of it! Anna someday hopes to become an Open Water Diver Instructor to help others find their passion for scuba.

Email: [email protected]

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Cassidy Mason

Aquatics Experience Lead
Swim Teacher

Cassidy has been teaching swim lessons for about 10 years, ranging from babies to adults. She has been on swim team for 12 years and a lifeguard for 10 years. She loves being in the water and watching children accomplish their goals. Cassidy chose to work for Diventures because she loves being around the water. If she could live in the water she would in a heart beat.

Email: [email protected]

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Dane Christians

Swim Teacher
Lifeguard

Bio coming soon!

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Eric Upchurch

Independent Assistant Instructor

My children and I were certified in 2016, and now I am a level 5 diver. Diving has allowed me to satisfy many desires including a passion for the ocean and its inhabitants, travel, people, gadgets, and personal development. As a dive professional, nothing excites me more than to share my passion with others. Diving has provided me with friends from all over the world, both above and below the surface.

Phone: 319.331.3738

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Jarred Childs

Open Water Instructor

I work at a veterinarian clinic doing histopathology and microbiology. I’ve been diving since September of 2020 and fell in love with the sport. My personal goal was to get to Master Diver in one year and so I pursued that goal and am now looking to advance to instructing.

Phone: 319.665.2741
Email: [email protected]

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Jeff Hynek

Independent Assistant Instructor

I was so confident about my ability and love for diving, that I actually purchased a total dive package before signing up for my first class. I showed up to the pool with every piece of dive equipment I would ever need, even had it all in a travel dive bag. That was in 2007. I never stopped taking classes and advancing my career. I became a dive professional in 2009. Now I dive with two of my kids who are certified also. My first dive in the ocean was with sharks in the Bahamas. I dove in Guam, the only place in the world where you can touch a WW1 and WW2 shipwreck at the same time. The earth is 70% water, might as well get under those waves and see what’s going on!

Phone: 319.665.2741

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JoAnn Haack

Independent Instructor Trainer

I have always been drawn to the underwater world seen in pictures and movies. Once I learned it’s possible to dive in the Midwest, I never looked back. I have been teaching diving since 2008. I left my corporate engineering job in 2016 to be in the diving industry full-time with Diventures. My favorite classes to teach include Science of Diving and the pro classes. I have progressed to Assistant Instructor Trainer with SSI, which means I  can teach the teachers of diving. I have had the opportunity to experience traveling to many dive destinations. From diving in Illinois to Indonesia and Grand Cayman to Galapagos – dive travel is my passion. I love leading trips which gives me the opportunity to use diving as a way to show my guests the world – both above and below water. Come divin’ with me!

Phone: 319.665.2741
Email: [email protected]

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Joe Fuller

Independent Instructor Trainer

I am a level 8 diver and have been diving since 2007. I have traveled to many places to dive both in salt water and fresh water. I love to photograph the underwater world and share my experiences with others.

Phone: 319.665.2741
Email: [email protected]

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Joe Williams

Open Water Instructor

Bio coming soon.

Phone: 319.665.2741

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Joey Johnson

Independent Open Water Instructor

Joey’s love for the water began at an early age with rafting, swimming and exploring the rivers and oceans of the Pacific Northwest. He joined the SSI dive program through Diventures in 2018 and worked his way to a level 4 Divemaster and then Open Water Instructor. Jim enjoys helping people of all ages learn how to be comfortable in the water so that they can also experience all that the underwater world has to offer.

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John Hughes

Independent Assistant Instructor

Bio coming soon!

Phone: 319.665.2741

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Josh Johnson

Open Water Instructor

Bio coming soon.

Phone: 319.665.2741

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Mac “Chance” Palmer

Customer Experience Specialist

I started scuba diving roughly 4 years ago…my goal is to become an instructor and share my passion of diving with everyone I can…my wish and desire is too further my education and knowledge to better assist and guide future divers.

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Mark Schipper

Independent Open Water Diver Instructor

I have been diving since 1992. My favorite places to dive are anywhere in the Caribbean. I became a Dive Pro around 2018 and an Open Water Diver Instructor in September of 2021. My goals for the future are to retire and live off a boat for the rest of my life.

Phone: 815.499.5107

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Marty Haxmeier

Independent Divemaster

Bio coming soon.

Phone: 319.665.2741

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Paul Hutton

Independent Assistant Instructor

Bio coming soon.

Phone: 319.665.2741

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Sidney Nash

Swim Teacher

Bio coming soon!

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Sinisa Grozdanic

Independent Assistant Instructor

My passion for the seas and oceans has existed since my early childhood. I grew up on the Adriatic Sea coast and started to snorkel and free dive in the early 80s. I became a scuba dive professional and Divemaster in 2021. Being a member of the scuba diving community has been a phenomenal experience and helped me meet many new friends on different continents. Becoming a scuba diver is a unique experience – one gets quickly surrounded by fast friends who will care for you as they have known you your whole life and will share the common goal of enjoying the wonders of the underwater world with each dive.

Phone: 319.665.2741

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Susan Jaeger

Swim Teacher

Bio coming soon.

Phone: 319.665.2741

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Will Errington

Scuba Experience Specialist

Will is Open Water certified and has been diving for 3 years. He obtained his certificate while living in Bermuda for four years where he also participated in other aquatic activities such as swimming, lionfishing, lobster diving, and cliff jumping. Having experienced life on a tropical island Will is very similar with all the best activities to participate in when on vacation. He is currently a senior in high school at Mount Vernon and plans to attend the University of Iowa.

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