Two Boats and a Lagoon
Located in the tranquil lagoon at Jules Undersea Lodge in Key Largo, we offer intimate, personalized dive trips for small groups in a one-of-a-kind setting.
Dive Training
At Ocean First, we offer scuba dive training in a fun, safe, and comfortable environment, fostering lifelong divers and ocean stewards.
With over 15 years of experience, Ocean First has been a pioneer in the scuba diving industry. We've brought the same level of innovation and excellence to our Key Largo location, ensuring divers of all levels have an unforgettable experience. Whether you're a beginner learning to dive, continuing your scuba education, or participating in citizen science research projects, Ocean First Key Largo offers opportunities for lifelong memories and incredible underwater adventures.
We had an amazing experience with Ocean First. I came to Key Largo to do my advanced open water certification with my instructor, but the water was too choppy to use his boat. Ocean First was able to accommodate us at the last minute and hit all the spots we needed to complete my certification. They really went above and beyond to take care of us, made sure that we stayed safe, and we had a wonderful time. The sites were beautiful with tons of fish and wildlife. I would definitely recommend Ocean First for your diving needs!
Laura D. (5/29/2025)
We dove with Ocean First for the last 2 days and had a wonderful time! Capt Jordan and Mate Jackson were friendly, knowledgeable, and helpful. They took us to 6 great reef and wreck dives to help complete AOW training. We will definitely visit Ocean First the next time we are in Key Largo for dive charters.
Kelly K. (5/28/2025)
Literally amazing! I arrived certified but did a refresher with Troy, which was very helpful and helped me feel confident going out for my first dive. Troy and I had a smaller group with just one other instructor (Al/Alisia) and student for our first day with two dives and same group our second day with two dives. Our Captain was Keith and it was all just phenomenal. Crew was so helpful and informative, calm and directive. They chose excellent places for dives, were so helpful and BEYOND competent underwater and knew so much about the marine life. Will definitely be back and can’t wait to meet more of the team!
Baylie R. (5/22/2025)
Citizen Science at the OFI Research Station | Ocean First Institute
As part of our exciting partnership with MarineLab, Ocean First Institute (OFI) has established a state-of-the-art research facility next to our dive shop in Key Largo. This new facility will play a vital role in advancing our mission of conservation through research and education. The OFI Research Station provides staff and students with unique opportunities to conduct ecologically significant and conservation-driven research, focusing on endangered species and impacted marine habitats.
The goal of this research is to fill critical knowledge gaps essential for science-based conservation efforts, while also offering students hands-on experience in marine conservation. Through our educational programs, OFI aims to nurture the next generation of conservation-minded scientists and environmental stewards, ensuring the protection and sustainability of our oceans for future generations.
TIDES is an immersive science camp for 12-18 year-olds that takes students on a transformative journey into the underwater world of marine science and ocean conservation. Warning... life-changing experience ahead! Click here to Learn More!
Ocean First invites you to explore the other 70% of the planet. Whether you’re after tropical reefs, land excursions, or your own custom-tailored adventure of a lifetime, we are a full-service travel agency bound only by your imagination.
Join us in Key Largo to complete your training in a tropical paradise!
Click here to learn more!
We are proud to announce our new partnership with REEF (Reef Environmental Education Foundation)
Learn more about Reef Environmental Education Foundation HERE
