Deep Dive: An Interview with Mark Haimona

More from Deep Dive Into Water Safety All episodes →

1. 

   S1 · 25 May 2026 · 1 hr 2 min

   Deep Dive: An Interview with Robin Baird

   Episode Notes March 3, 2026: Robin Baird, PhD Marine Mammal Researcher Robin Baird is a marine biologist with the Cascadia Research Collective who has been studying dolphins and whales in Hawaiian waters since 1999. During this interview, he discussed how little scientific information previously existed about many nearshore species in Hawaiʻi and how long‑term research has helped improve understanding of marine mammal populations, behavior, and conservation needs. The interview explored human impacts on marine mammals and how people can interact responsibly with wildlife in the ocean. He has…

2. 

   S1 · 22 May 2026 · 54 min

   Deep Dive: An Interview with Dr Hanna Van Waart

   Episode Notes Research, CPSC Warning, and Manufacturer Responsibility Hanna Van Waart PhD Exercise Physiologist at the University of Aukland discussed full face mask safety, her research and manufacturer’s responsibility The research article, “Full-face snorkel masks increase the incidence of hypoxemia and hypercapnia during simulated snorkeling compared to conventional snorkels,” was published in Diving and Hyperbaric Medicine in December 2023. The study was led by Janneke Grundemann, with coauthors Xavier C.E. Vrijdag, Nicole Y.E. Wong, Nicholas Gant, Simon J. Mitchell, and Hanna van…

3. 

   S1 · 18 May 2026 · 1 hr 20 min

   Deep Dive: An Interview with Alissa Magrum, 2026

   Episode Notes April 8, 2026 This episode of Deep Dive into Water Safety explores a critical truth: drowning is not random, rare, or inevitable; it is a preventable public health crisis. Alissa Magrum , Executive Director of the National Drowning Prevention Alliance , will unpack why drowning continues to impact communities worldwide despite being largely preventable. Alissa shares her deeply personal journey into drowning prevention and highlights the urgent need to treat water safety as an essential life skill, just like wearing seatbelts or bike helmets. The conversation dives into the…

4. 

   S1 · 15 May 2026 · 1 hr 19 min

   Deep Dive: An Interview with Drasko Bogdanovic and Dr. Justin Sempsrott

   Episode Notes Inside the Roundup: Drasko Bogdanovic and Dr. Justin Sempsrott on the Critical Minutes That Save Lives — “Micro Delays Matter” This episode of Deep Dive Into Water Safety focused on what happens in the first minutes after a drowning rescue and why those moments can determine survival long before someone reaches a hospital. Returning guests Drasko Bogdanovic and Dr. Justin Sempsrott discussed the San Luis Obispo “Roundup,” a large scale rescue training event that brought together more than 250 first responders, including lifeguards, EMS, firefighters, and rescue personnel from…

5. 

   S1 · 11 May 2026 · 48 min

   Deep Dive: An Interview with Ralph Goto

   Episode Notes April 26, 2026 From Rescue to Prevention: Ralph Goto on Snorkeling Safety in HawaiʻiUnderstanding the risks behind snorkeling incidents and the future of ocean safety through research, education, and lifeguard leadership This episode explores the evolution of lifeguarding in Hawaiʻi and takes a deep dive into the growing concerns around snorkeling safety. Veteran ocean safety leader Ralph Goto former Chief of the City and County of Honolulu Ocean Safety Division, longtime lifeguard, and one of the key architects of Hawaiʻi’s modern ocean safety system shares how lifeguarding…

6. 

   S1 · 1 May 2026 · 1 hr 33 min

   Deep Dive: An Interview with Dr Morgan and Adrian Mayhew

   Episode Notes Standardization of Practice and Lifeguards should be First Responders and Families should know Pushy Pushy Blowy Blowy Sparky Sparky In this episode, internationally recognized experts Dr. Patrick Morgan Medical Director to His Majesty’s Coastguard. He has been a key contributor to advancing standardized drowning definitions and reporting frameworks, helping align global data and improve prevention strategies. His work spans the full continuum of drowning from prevention and rescue to resuscitation and post-incident care emphasizing a systems-based, data-driven approach. Adrian…

7. 

   S1 · 28 Apr 2026 · 54 min

   Deep Dive: A Recap and Interview with Mayor Derek SK Kawakami

   Episode Notes 4.17.26 For the live show, Margaret catches up with outgoing Kauaʻi Mayor Derek S.K. Kawakami, an avid waterman and surfer, on the collaborations and progress that the Kauaʻi Lifeguard Association has made in the past year. Says Kawakami about the visit that the Okinawan Lifeguards made to Kauaʻi: “The exchange of lifesaving knowledge and culture strengthens our ability to protect everyone enjoying Kaua‘i’s waters. Programs like this build international friendships and make our ocean safety efforts even more effective.” Mayor Kawakami was our first interview for Deep Dive, so…

8. 

   S1 · 15 Apr 2026 · 1 hr 5 min

   Deep Dive: An Interview with Allison Schaefers

   Episode Notes Resident not just visitors account for nearly half of ocean drownings in Hawaiʻi, about 49 percent, challenging one of the most common assumptions about who is at risk. Even more sobering: drowning remains the leading cause of death for Hawaiʻi’s children ages 1 to 15. Allison Schaefers , a journalist with the Honolulu Star-Advertiser and a key member of the Hawaiʻi Water Safety Coalition, is helping change that reality. Her work sits at the intersection of public awareness, policy, and prevention treating drowning not as an accident, but as a preventable public health issue.…

9. 

   S1 · 1 Apr 2026 · 42 min

   Deep Dive: An Interview with Dr Laura Trapani

   Episode Notes Dr Laura Trapani The Safety Risks of Full-Face Snorkeling Masks, particularly for Children This interview is based on research presented by Dr. Laura Trapani a pediatrician and clinical researcher affiliated with the IRCCS Burlo Garofolo children’s Hospital and the University of Trieste in Italy. Where her work is helping to reshape how we think about child safety in the water. Full-Face Snorkeling Masks Carry a Risk of Hypercapnia and Drowning in Younger Children: A Case Series 2025 . Dr. Trapani’s research has gotten the attention of the Italian Ministry who are in the…

10. 

    S1 · 27 Mar 2026 · 1 hr 20 min

    Deep Dive: An Interview with Colleen Saunders

    Episode Notes “Drowning Isn’t Inevitable It is Preventable.” - Dr. Colleen Saunders Dr. Colleen Saunders is a leading researcher in drowning prevention whose work is helping to reshape how we understand water safety on a global scale. Her journey into this field didn’t begin in a laboratory it began in the ocean. She spent nearly two decades as a voluntary lifeguard at Big Bay in Cape Town, where lifesaving became part of who she is. What started as a passion and a commitment to protecting others in the water would eventually evolve into a powerful research career. After completing her PhD,…