Marvin Otsuji is the owner of Seasport Divers, and he enjoys meeting customers in his Kapaa and Poipu stores. Marvin was born on Moloka’i and has made his home on Kauai, in Kalaheo with his wife and daughter since 1975. Marvin enjoys golf, tennis, kayaking, wind surfing, canoeing, surfing, scuba diving and has coached outrigger paddling teams for local youth. He has a strong commitment to his island community and has served as either President, an Executive Board Member or an Island Delegate for many ocean sports and Island organizations. “I want to thank you for diving with Seasport Divers in the past, and invite you to return to Kauai and dive with us again. Kauai is an incredible paradise, with all kinds of sports and activities for the whole family.”



Josh was born in Atlanta and raised in memphis. He has 2 degrees from Montana State university in English and Cinematography and after school decided to live out of a backpack and travel the world. He is a Master Instructor and EFR Instructor Trainer from PADI and SSI and has been teaching for almost a decade in Asia, the South Pacific, Europe, and the Caribbean. Hawaii has always been his home away from home and he has decided to call Seasport and Kauai his home for the long run.



What do you say about a guy that just shows up everyday with a great attitude and does what ever needs getting done. Helping with customers, answering the phones, pumping NITROX, and fixing gear, you name it Don’s done it. Don has been with Seasport Divers continuously since 1995. He is a retired Police Sergeant of 22 years from Inglewood California. Don grew up in So Cal and spent many a day at Manhattan Beach. He likes to say he visited Kauai and never left. That was 15 years ago. If you’re up early you can see Don jogging everyday, he also is the master at finding rare shells.



Betsy has been putting up with us since January 2001 and without her everything would grind to a halt. She grew up in the Lake Tahoe area and has been on Kauai for 20 years. She’s most proud of raising her two sons, one of which is a Semi-Pro Surfer here in the islands. She handles all the accounting and somehow makes sense out of all the stuff we put her through. She truly is part of the backbone that makes this place work. We love Betsy… she writes our paychecks.



Andrew has been with Seaport Divers since October 1994 and serves as our Senior Captain and as an instructor. He started decking on fishing boats when he was 18 and has been a certified diver since 1982. He grew up diving in Monterey Bay and received a BA in Marine Biology from UC Santa Cruz. Combine all that knowledge with almost two decades here on Kauai . . . if you have a question, Andrew probably has the answer. Outside of work Andrew loves wood- working, shell collecting and has the largest Aquarium and Fish collection any of us has ever seen.



Born on Kauai, Zac has been active with Kauai scuba diving since 1985. He started with Seasport Divers in 2000 and specializes in driving our boats and repairing all our equipment. Back in 1988 he discovered a popular dive site which was named after him – ‘Zac’s Pocket’. There is an interesting story attached to that dive site name, but you will have to come to Kauai and ask him in person. Zac has 5 children, 2 grandchildren and loves to be out in nature, hiking, boating, fishing and spearfishing.



Elizabeth is an IDC Staff Instructor from Nashville, TN. She started diving in college at Auburn University where she got her degree in Entrepreneurship and Family Business, but her true passion was scuba diving and has since made that her career here in the Hawaiian Islands. She loves sharing what the ocean has to offer with new people every day. When she is not in the water she can be found somewhere outside enjoying the beautiful island of Kauai and all it has to offer.



Derek is originally from New York City, but grew up on Long Island. He got hooked on scuba diving while in college and received his PADI Open Water Instructor (OWSI) certification at the same time as getting his degree. After graduating from college he decided to work as a scuba instructor and took a job offer to work here on Kauai. When not diving professionally, Derek enjoys diving for fun looking for sharks and enjoying Kauai’s many hiking trails.



Cole comes to us from Los Angeles, California but has had Kauai in his blood since he was a kid. Fortunate enough to call Kauai his summer home while growing up, it was only a matter of time until he became hooked on Scuba Diving. Cole did his first Discover Scuba when he was 11 and then became certified here at Seasport at 15. He became a PADI Instructor and has traveled extensively in order to share his passion for the ocean. When not working he can be found taking pictures, fun diving, paddle boarding, or cheering on his favorite sports teams at the local watering hole.


Annette traded the Garden State for the Garden Island in January of 2017.  Since 2010, she’s been a busy PADI MSDT, traveling and diving in North Carolina, Palau, Truk Lagoon, the Caribbean and Panama.  She’s excited to be part of the Seasport crew and explore all Kauai has to offer!  She’s also a student of sustainable tourism and hospitality at UMASS Amherst Online.


Sam is a dive instructor from Florida Keys who learned to dive at age 10. She loves sharing the beautiful ocean and showing guests the rare and endemic species of Hawaii, especially nudibranchs!



Kalama is originally from Koloa and graduated from Kauai High School in 2003. He then went off to the Mainland to attend college at Criswell College in Dallas, Texas and graduated in 2013. Kalama started at Seasport Divers as a handyman working on the boats, but was offered a chance at working towards being certified as a PADI OWSI which he now is. Kalama is Dive guide and can’t get enough as he enjoys scuba diving on his off time.


PADI OWSI – Kapaa Store Manager

Jim was born on O’ahu and lived in Honolulu for 8 years until his Dad retired from the Air Force and moved to the Mainland.  He lived in Kentucky and earned degrees in both English and Exercise Science to become a NASM Certified Personal Trainer and Diabetes Wellness Specialist.  His Mother taught 18 years at Kalaheo High School on Oahu and upon losing her in 2014, brought her ashes to Kauai where he decided it was time to come back home to the islands.  He earned his PADI OWSI and quickly became a part of the company.  Jim is now the operations manager for the Kapaa store.  He has 5 kids and can be usually found in the woods or under the water.




Tiffany comes to us from the Big Island of Hawaii. Wanting a change of scenery, but nothing drastic, she made her way to the Garden Island of Kauai. Always up for some fun and adventure, Tiffany enjoys going to the beach with her dog, fishing and freediving. You can also find her with her nose buried in a good book! Tiffany is currently enrolled at Kauai Community College in the Marine Option program.



Doreen was born right here on Kauai, but has lived on Oahu as well as Washington state and returned back to her island home in 2000. She has been with Seasport Divers for three years and is our resident “go-to” person fo knowing where everything is in the store. When she isn’t keeping a tight rein on the inventory, she enjoys all forms of art and music and is a big fan of Kauai’s local talent.