Meet Our team

A great experience across all water activities


Our scuba instructors are SSI certified and hold the highest level of recreational dive training. With tens of thousands of hours of diving experience and more than 50,000 logged dives at locations all around the world, they have the experience and knowledge to educate you to be a safe and confident diver.

Our retail staff and service team members are certified scuba divers with extensive knowledge about scuba and diving equipment.

Our swim teachers are certified Swim Schools International teachers. They use the latest swim curriculum and teaching techniques. More importantly, they LOVE kids! With a 4:1 student-to-teacher ratio, your child will get to know his or her teacher and become comfortable learning new skills in water.

Meet the management team


Dean Hollis

Open Water Diver Instructor

Dean has been diving since he was 16 and still loves it as much as when he started. Dean is a level 10 diver and teaches several specialties, including spearfishing and scuba rangers. He leads a few trips each year, usually in the Caribbean, because they are close and easy to get to and he prefers the more authentic islands. Dean founded Diventures to help as many people as possible enjoy spending time in and around the water.

Phone: 402.933.6251
Email: [email protected]

Will Munroe

General Manager
Open Water Diver

With a deep passion for both the outdoors and customer service, Will brings nearly two decades of business leadership experience to the Diventures team. Will has grown up in and on the water and is energized by sharing his love of the outdoors with others. Believing firmly in the transformational power of the outside world to positively impact lives, Will leads our team in delivering and expanding our unparalleled customer experience and commitment to safety and fun in the water.

Phone: 531.999.8425
Email: [email protected]

DeAnn Olsen

Chief Financial and Administrative Officer

DeAnn has over 35 years of experience in accounting and finance, enjoys helping others and any activities that involve being outside.

Phone: 531-999-3843
Email: [email protected]

Ben Snyder

Swim Program Director
Swim Teacher Instructor Trainer

Ben has over 15 years of aquatics experience including teaching swim lessons and training lifeguards. He specializes in working with those with special considerations and loves sharing his passion and helping everyone reach their desired goals in the water!

Phone: 402.933.6251
Email: [email protected]

Kim Infield

Scuba Program Director
Master Instructor 

Kim has been a scuba diver for 19 years and a dive professional for 13. She brings extensive experience in recreational, technical, and adaptive instruction as well as expertise in dive center logistics. She strives to create safe, comfortable, and confident divers through guiding the world-class scuba instruction and service offered at Diventures. In her opinion, there’s no feeling above the surface that quite matches a perfect dive.

Phone: 404.981.0710
Email: [email protected]

Megan Oswald

Travel Program Director

Megan fell in love with the underwater world the first time she went diving and she loves helping people discover it’s beauty. As a level 5 diver, she appreciates her career focused on her passion for diving and the water. And she is always excited to talk about diving and traveling.

Phone: 402.614.9232
Email: [email protected]

JoAnn Haack

Director of New Business Development 
Assistant Instructor Trainer

I have always been drawn to the underwater world and the beauty I’ve seen in pictures and movies. Once I learned it’s possible to dive in Iowa, I never looked back. As a level 8 diver, I have helped many new divers take their first breaths underwater and have taught ages 10 to 66 since becoming a dive professional in 2008.

Phone: 319.665.2741
Email: [email protected]

Erin White

Director of Merchandising
Open Water Diver Instructor

Erin was a competitive swimmer growing up and has always had a love for the water. Her background in retail and her experience as a level 5 diver makes her a valuable resource for our customers. Erin’s favorite thing to do is to help others become passionate about the underwater world.

Phone: 417.883.5151
Email: [email protected]

David Hollis

Training Program Director
Assistant Instructor

David’s passion for scuba started before he turned ten while doing Try Scubas with his dad. His passion for the ocean and all outdoor activities has only grown since. A progressing Dive Professional; David’s favorite place to dive (so far) is Grand Turk but he continues to explore all dive destinations.

Phone: 402.502.3785
Email: [email protected]

Anne-Marie Sullivan

Marketing Director
Open Water Diver

Anne-Marie was certified to dive in 1994 and has spent a lifetime around the water in the lakes of Minnesota and Wisconsin. She is passionate about serving others, being a good steward of the environment, and advocates Diventures positive message of a healthy life style and exploring our beautiful blue planet. She is an avid yoga practitioner and is the mother of three grown daughters. 

Phone: 531.867.7465
Email: [email protected]

Matt Timm

Store Manager, Omaha
Open Water Diver

I have over 20+ years of retail management experience with a primary focus on providing great experiences and excellent customer service.

Phone: 402.933.6251
Email: [email protected]

Ryan Oestreich

Store Manager, Springfield
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]

Sara Holley

Store Manager, Fitchburg and Sun Prairie

Swimming has been a passion of mine since my first lesson at age 4. I was a competitive swimmer for over 10 years, traveling all over the United States and Canada for competitions. I come from a family of avid water skiers and enjoy spending time at the lake.

Phone: 608.630.9800
Email: [email protected]

Gabe Dorrell

Store Manager, North Liberty
Swim Teacher/Lifeguard Instructor/Open Water Diver

Swimming has been a part of my life for as long as I can remember. I became a lifeguard at the age of 15 and have loved helping people enjoy the water ever since. I swam competitively at the youth, high school, and collegiate levels. I enjoy sharing my passion with others.

Phone: 319.665.2741
Email: [email protected]

Anna Flairty

Marketing Specialist

Anna’s aquatic background includes 10 years of competitive swimming and 4 years as a swim instructor. She enjoys traveling, musical theatre, and spending time with her mother. 

Phone: 531.999.3844
Email: [email protected]

Autumn Wood

Marketing Intern

Whether it’s working on land or in the water, Autumn is always having fun! She started at Diventures as a swim teacher and recently joined the marketing team! Autumn is a former Omaha Zoo Academy student who values education about ocean conservation in addition to swim safety. She is also a collegiate athlete with a passion for coaching and leadership, which she applies to all her swim lessons!

Phone: 531.999.3844
Email: [email protected]

Visit Diventures to experience our concierge service.