Marlin Swim Coaches
Hello Marlins (and future Marlins)!!
Here we go again!!! I am so looking forward to this upcoming season!!
I have been coaching for over 20 years and have worked with littles just learning how to swim all the way to elite triathletes. I love the culture of the rec team atmosphere and feel that this team plays a crucial part in the community. My hope is to continue to grow a program that allows brand new swimmers to fall in love with the sport and for seasoned swimmers to flourish in the team atmosphere. We are very fortunate to be able to provide and be a part of this swim team and I look forward to creating many memories with the Belterra families around the pool!! Now… let’s jump in and have some fun!!!
Coach Holly Diemer was born into a swimming and coaching family in California. Growing up, she participated on and off in a summer recreational program and, at 16, started giving learn-to-swim lessons. It was at this time that Holly found her passion for teaching swimming. After aging out of participating on the swim team, she became the assistant coach for Bishop Estates Barracudas. In 2003, she accepted an assistant position with the Walnut Heights Otters and eventually became the head coach. Holly continued to learn from her own experiences and from other coaches. One of those coaches at the time was Mike Bottom, who was the coach of the men's team at UC Berkeley. During the off season, she immersed herself in various swim activities such as teaching clinics, giving lessons, attending coaches’ clinics, and swimming events including Tiburon Mile and Golden Gate bay swims. Holly brought new growth and success to the Walnut Heights Otters through 2008. She then got married to her Navy sweetheart and moved to New England. In late 2009 she returned to California and began coaching her original team, Bishop Estates. She remained there until moving to Austin at the end of the 2014 summer season.
Once in Austin, Holly did some training with Austin Aquatics and Sports Academy. She also completed The Escape from Alcatraz swim as well as the Big Swell swim in Lake Michigan. For a few years, she had the pleasure of coaching the Springs Family Y youth team as well as the Masters. The best summers she had, though, were coaching the Belterra Marlins until she moved to Burnet in 2020. While she continued to help coach at her local Y, as well as conducted mobile lessons, she is so happy to be back on deck with the Marlins for the 2026 season!
Hello Y’all, I'm Coach Landon! This is my second season as an Assistant coach, and my seventh season as a part of the Marlin family! I am a state competitor and champion, school record holder at Dripping Springs High School, and Texas State University, and most importantly: a Belterra Marlins record holder! Aside from swimming, I am a Dean’s List student at Texas State, a car enthusiast, a long distance runner, and an enjoyer of all things outside and in water. I'm so excited to coach all of you guys this season, and I’ve been looking forward to seeing all of my swimmers since I last saw you guys over the summer!
Hello, I’m Connor Caffrey, one of your returning assistant coaches! I'm a long-term Marlins myself, a 4-year high school swimmer at Dripping Springs, and a collegiate swimmer at Texas State for the club team. I’ve seen the sport from top to bottom and I’ve been through the same program these kids get to experience. This was a great place for me to swim growing up and continues to be a great place for the new generation of kids coming through. Hoping for a good season and Go Marlins!
Hello, I am Cooper Hamby one of your new assistant coaches! I’ve been a Marlin for 5 years and swam for 3 years so far at Dripping Springs, where I also served as a team captain this year. Growing up on this team helped shape my love for the sport and taught me a lot about hard work and teamwork. I’m excited to help the next group of swimmers improve, have fun, and enjoy being a part of the Marlins. Looking forward to a great season! Go Marlins!
Hello everyone! I’m William Napier, AKA Coach Will, and will be returning for the 2025 season! I used to be a Marlins swimmer, then a junior coach, and now I have come back for my second season as an assistant coach. I previously worked at NITRO for the last two years as a swim instructor also taking on the responsibilities of being a deck coach. I am also currently a 2024-2025 Team Captain on the DSHS swim team. As a committed individual in the swim community, I pride myself in my skills and ability to work with care and precision. I hope to foster a community full of Marlin pride but most importantly some Marlin fun! Let’s work hard together to reach our goals!
Howdy y’all! My name is Abigail Owens and I'm SO excited to be an assistant coach this year! Marlins inspired me to swim at the high school level, where I’ve been a captain for the past two years. I am graduating this year and can’t wait for what's ahead.
I’ve been swimming with the Marlins for six years, and for four of those years I’ve also been a junior coach helping younger swimmers gain skills and confidence in the water. Through coaching, I discovered how much I enjoy teaching and helping swimmers gain a love for the sport while having fun.
I cannot wait to start this season because there AIN’T NO PARTY LIKE A MARLINS PARTY!
