Limited Spaces Available! For reservations call (866) 576-9151. Spaces are extremely limited this time of year so book early to ensure the date you want.

Mini Sub Underwater Adventure


  • Pictures of Your Adventure!!
  • Fantastic Underwater Adventure 
  • Small group sizes
  • Complimentary round-trip shuttle transportation from our downtown meeting point
  • Ride on our spacious 45' power catamaran with roof

Tour Summary

Join us on a unique adventure out to the world's 3rd largest barrier reef system, the Florida Barrier Reef! Our Mini Sub tour allows you to experience a natural underwater eco system with minimal effort. Simply have a seat on an underwater scooter and navigate your way throughout parts of the reef system. By design, you are able to breathe the steady flow of oxygen within the dome during your exploration beneath the sea, and there is no need to wear a snorkel or breathing apparatus. Powered by an efficient electric motor you will be propelled and can even steer the scooters as you find yourself mesmerized by the brilliantly colored coral formations that make homes to thousands of marine species.

Commonly spotted along the barrier reef are Porkfish, Angelfish, Parrotfish, Triggerfish, Pufferfish, Gobies, Filefish, Grouper, Jewfish, Barracuda, Moray Eels, Green and Loggerhead Sea Turtles, and many more. Oh, and don't forget to bring an underwater camera with you and capture every up-close moment!

Safety is of utmost importance to us, so we have a professional dive instructor on every trip to monitor the Mini Subs and ensure that everyone is moving along smoothly. All instructions will be provided on the boat ride out to the reefs. Also, we reserve the right to deny any that show signs of impairment at the time of boarding.

It is your responsibility to make sure you are aware of and understand all restrictions pertaining to this tour before booking online or over the phone. It is your responsibility to ensure that you are medically qualified and within any limits listed below in order to participate in this activity. No refunds will be given to those who reserve a spot and can not participate due to the restrictions listed below. For more information please read our cancellation policy and terms and conditions page or call our staff with any questions regarding your ability to participate.

  • All guests must be 54" or taller in order to participate on the Mini Sub, due to the design of the machines.
  • This tour is not suitable for pregnant women and persons with history of stroke or heart attack, however these guests can still snorkel.
  • ALL GUESTS must wait at least 24 hours to fly after taking part in this tour

Key West Snorkeling Tours is always interested in your tour experience with us. We hope you enjoyed your tour and love to hear comments.

Bob Smith

I have been to the Bahamas many times, but Mini Sub Underwater Adventure is one of my favorite trips! It includes everything that everyone should do here. As a Bahamas veteran, I can say only the best about this experience!

Jim Peters

Thanks to the professional guides! I was a bit worried about kayaking because I had never done it before, but the instructions were great and I had such a good time!

Richard Dixon

The best way to discover nature! ( ͡° ͜ʖ ͡°)