MarineLab Undersea Park

15/05/2026

The lagoon looked a little different Friday night 🌕🌀

We recently hosted a Floating Sound Bath with Lone Palm Yoga & Wellness, giving guests the chance to float under the full moon while surrounded by calming sound vibrations in the water.

From floats drifting through the lagoon to mats set up along the shoreline, it was such a peaceful way to experience the space after hours.

Events like this are such a fun way to experience the park in a completely different setting, and after this turnout… we may have to bring it back. Keep an eye out for future dates ✨

12/05/2026

Last month, we welcomed divers and visitors to the lagoon for Vintage Dive Day, hosted alongside the History of Diving Museum and NAUI Worldwide 😎👏

Throughout the day, guests had the chance to see old-school diving gear in action, from classic double-hose regulators in the water to hard hat diving demonstrations with Trident Surface Supplied Diving, LLC and Brass Hat Diver.

It’s not every day you get to watch diving history come to life like this. Seeing the equipment, techniques, and technology that helped shape modern diving made for such a fun day in the lagoon.

Big thanks to everyone who joined us underwater and on shore for this one 🤿

28/04/2026

30/03/2026

In the Florida Keys this April?

The History of Diving Museum and NAUI Worldwide are hosting our annual Vintage Day Day on

Saturday, April 11th 🤿

Dive into the lagoon at MarineLab Undersea Park with a classic double-hose regulator, and watch hard hat diving demonstrations at noon with Trident Surface Supplied Diving, LLC and Brass Hat Diver!

You can get your tickets here: https://shop-diving-museum.company.site/products/Vintage-Dive-Day-2026-Sat-April-11th-p645613534

Questions? Concerns? Leave a comment or shoot History of Diving Museum a message.

See you there in Key Largo!

03/02/2026

A new extended mission is coming to Jules' Undersea Lab in 2026! 😎

The Veterans’ Decompression Project is a pilot program exploring how extended time underwater may support veterans living with PTSD, anxiety, and sleep challenges. The mission is scheduled to run from June 27 through July 4, 2026, beginning on National PTSD Awareness Day and wrapping up on our nation’s 250th birthday 🇺🇸

This project brings together veterans, science, and education inside a unique underwater environment where daily routines, reduced distractions, and focused work create a very different experience than life at the surface.

This pilot is focused on learning and understanding what this experience can offer. Over the coming months, we’ll be sharing more about the mission, the inspiration behind it, and the people leading the way!

👉 Read all about here: https://www.marinelabunderseapark.org/veterans-deco

30/01/2026

This Snorkel with a Marine Biologist session had first-time snorkelers getting comfortable in the lagoon, learning how to use their gear, and spotting marine life along the way 🤿🐟

With a marine biologist leading the session, they were able to take their time, ask questions, and explore the water at an easy pace. It’s a relaxed, supportive way to try snorkeling for the first time and actually know what you’re looking at below the surface!

After their snorkel, microscopes came out for a closer look at our lagoon critters. The session wrapped up with a closer look at the science side of what they just experienced in the water.

👉 These sessions run for two hours and are kept small, with a minimum of 2 and a maximum of 6 participants.
Head to https://www.marinelabunderseapark.org/snorkel-with-a-marine-biologist to learn more! 🤩

23/12/2025

Heads up! 👋
Due to windy weather and at the request of our dive shops, we’ll be OPEN on Christmas Eve (Dec. 24) from 10:00 am – 4:30 pm 🎄🤿

If you’re planning a visit, we’ll see you then!

16/12/2025

The seawall and dock got a full glow-up ✨

Thanks to funding from the Monroe County BOCC - Florida Keys and the crew at Upper Keys Marine Construction, the lagoon area now has a brand new seawall and beautifully resurfaced docks. The project is officially complete and looking amazing 🤩

We shared a progress update in September, and now the final product is here.
We’re so excited for everyone to see it!

Huge thank you to the TDC and to the Upper Keys Marine Construction team for bringing this project to life 💙

11/12/2025

Holiday season is here, and our gift shop is offering 15% off for all dive instructors and their students 🤩🎁

Whether you’re visiting Jules' Undersea Lab or exploring the Undersea Park, the gift shop is stocked with a variety of merch, plus plenty of MarineLab gear to choose from 🤿

Shopping online instead? Use code DIVESHOP15 for the same discount at https://www.marinelabunderseapark.org/gift-shop

Our gift shop is open Tuesday–Sunday, 8am to 3pm. Come check out what’s new 🛍️💙

And if you’re not sure what to pick out, we’ve got gift cards too, great for the ocean lovers in your life 🌊

07/11/2025

We’re excited to launch our new Snorkel with a Marine Biologist experience here at the lagoon of MarineLab Undersea Park!

Join one of our marine biologists in a small group, and explore the clear waters of our private lagoon. Our program includes:

🔍 A first look at some of the lagoon critters you might spot during your snorkel, guided by one of our biologists
🤿 Gear fitting and a quick walkthrough on how to use each piece of equipment—adjusted for your experience level, whether you’re brand-new or already comfortable snorkeling
🌿 Snorkel session in the lagoon to search for the plants and animals commonly found in the Florida Keys
🔬 An optional microscope session afterward to check out the tiny creatures you can’t see while snorkeling

We’d love to show you around our lagoon. Tap the link in our bio for session times and info! 🤩