Meet new scuba divers, maintain a virtual dive log, participate in our forum, share underwater photos, research dive sites and more. Members login here.

Blue Grotto Dive Resort - Williston FL

Blue Grotto Dive Resort is a shore accessible fresh water dive site, located at 3852 NE 172nd Ct, Williston, FL 32696. This dive site has an average rating of 4.06 out of 5 from 209 scuba divers. The maximum depth is 101-110ft/31-34m. The average visibility is 41-50ft/12-15m. This dive site provides bathrooms and airfills. Training platforms are available.

All you need to dive this 100 ft. cavern is an open water certification!

This is the Blue Grotto sinkhole, not the cave.

Blue Grotto is part of the Florida aquifer system it’s fed by the springs in the area and maintains a constant 72-ish degrees year round. This paradise-like dive destination offers training platforms for students, a great cavern system and a cool fresh air dive bell filled with compressed air from the surface. Don’t forget to say hi to Virgil the resident soft shell turtle.

The dive begins at the mouth of the cavern, which is 80ft wide and 20ft high. Look from topside into the sharp blue of the pool and you will understand why Blue Grotto is well known for its exceptional visibility year round. 30ft below the surface is the only air bell available to spring divers in the region, filled with fresh compressed air that allows you a unique opportunity to stop and talk with your buddy under the water. Descending from there, at 50ft a permanent guideline brings you to the crescent shaped cavern where you will experience an array of fossils along the walls of the chamber and an abundance of aquatic life (bluegill and catfish) waiting for a free handout. But words will not do justice to the experience of diving in this breathtaking underwater hideaway.

This Dive Resort offers a fully equipped dive shop and shelters for your diving gear. Shelters can be reserved via email or phone. There is also a bathhouse with hot showers.

Bring your friends to enjoy a BBQ on your surface intervals at one of our many picnic pavilions. You can even play basketball while you wait for your gear to dry.

Make sure to ask about our rooms, so you can enjoy the Blue Grotto for as long as you like.

Excellent cavern dive with platforms located at 20 and 30 feet with an airbell at approximately 25ft.
Maximum depth is 100ft and approximated diameter is 75ft in width with an overhead beginning at 25ft.
Numerous shelters with picnic tables and large restroom facilities with changing rooms and showers.
And if you’re really lucky a (female) turtle named Virgil will come by and visit with you for a while.

Blue Grotto dive 29 OCT 2016

Official Blue Grotto Dive Resort video (Required viewing)

Dive Site Map

Click to Load Map


sodaskills - 2 days 17 hours ago.
Rating Added: 5
Not many people, great vis. Explored the main cavern to about 67 ft., went in the air bell, were visited by Virgil on our safety stop.
Staff was super helpful and easy going and rates for rental gear were reasonable.
ScubaDive - 4/28/2021 12:13 PM
Looking for a dive buddy to the Grotto, Devil’s Den, Ranibow Springs and Paradise Springs from now till the end of June
SantaFeSandy - 4/28/2021 5:41 PM
Hi, just wanted to remind you that you may get more hits from a “buddy wanted” forum post.
RickMunoz - 5/02/2021 9:52 PM
I’m booked nearby in Gainesville May 10th-14th and would like to dive Blue Grotto and Devil’s Den and need a buddy to dive both, IG imRikkiBobbi traveling, camping and staying in hotels from Destin to the Keys
SantaFeSandy - 5/03/2021 6:18 AM
Rick, we offer camping at Blue Grotto as well.
RickMunoz - 5/03/2021 3:39 PM
I am camping already at 2 spots before I get to Gainesville so will travel from hotel to Blue Grotto and Devil’s Den :)
ScubaDive - 5/05/2021 11:11 AM
Hi Rick, I am working on weekdays. I wish I could join you. Hope you will find a dive buddy. Good luck!
SantaFeSandy - 5/05/2021 7:18 PM
Rick, be sure to cross post your buddy request under the Forum Link. You will see Buddy Wanted. You can view all who are searching now too. Another fellow will be in the areas as you. Check it out.
wgr21 - 2/23/2021 8:48 AM
I went scuba diving here on 2/19/2021. Average viz: 71-80ft/22-24m. Water temp: 71-75°F/22-24°C.
Chiltgen - 12/07/2020 8:07 PM
Looking for a buddy to dive the grotto, devils den and rainbow river in the next week. Drop me a message if you’re up foe a few dives!
MadamNina - 9/26/2020 9:26 PM
Rating Added: 3
Great adventure for a newly minted diver. Water was a chilly 72 but the company was great, easy dive and very friendly fishies.
randomlyon - 8/06/2020 4:04 AM
Rating Added: 4
Great cavern dive to do once. Platform areas are good for training. I’ll go back to see their cave after I’m certified.
siboles2000 - 4/08/2020 4:31 PM
Rating Added: 5
Awesome Dive
markingrassia - 9/28/2019 10:49 AM
If you are a newby diver, Blue Grotto is one of the first open water dives you will visit. After that it’s a ’been there done that’ dive.
Rollercoaster - 8/23/2019 3:32 PM
Looking for a dive buddy on 12 Sept. I want to dive at Blue Grotto & Devils Den. Never been to these locations. Possibly do multiple dives at each.
SantaFeSandy - 8/08/2019 8:51 AM
I went scuba diving here on 7/27/2019. Average viz: 71-80ft/22-24m. Water temp: 71-75°F/22-24°C.
Saturday July 27, 2019. Hired by Joseph to photograph and video his surprise wedding proposal to Allison. It went without a hitch. Virgil and her fish buddies showed up right on queue. I posted the Video on YouTube. Will get the link and edit this later.
WatchingSparksFly - 7/28/2019 2:00 PM
Rating Added: 3
Nice accommodations, good diving, I would like to explore the cave a kittle better.
SantaFeSandy - 7/28/2019 5:18 PM
So are you a cave diver, or speaking about the open water Cavern zone?
Havicus - 4/09/2019 2:05 PM
I went scuba diving here on 4/7/2019. Average viz: 16-20ft/5-6m. Water temp: 71-75°F/22-24°C.
Havicus - 4/09/2019 2:02 PM
Rating Added: 5
So beautiful. I love the pavilion areas to set up. Everyone is so nice. It’s calm and relaxing.
BamBam74 - 11/23/2018 3:48 PM
Looking for a dive buddy the area 24-26 Nov 2018.
SantaFeSandy - 11/24/2018 8:40 AM
I sent you a private message.
SantaFeSandy - 11/22/2018 10:26 AM
I went scuba diving here on 11/21/2018. Average viz: 81-90ft/25-27m. Water temp: 71-75°F/22-24°C.
Wed. Nov. 21, 2018 - Great day revisiting the ever so lovely Blue Grotto. It was really nice to be back with my good friend and awesome underwater model Susan Pagan.

After she and I surfaced, Sam Piper became the model for a second dive.

Neither Sam, nor Susan had ever modeled while trying to negotiate a slave strobe and it’s many nuances. Needless to say, it is significant task-loading. While both did good, after today’s experience, they will be even better next time.

Thank you both so much for spending your Thanksgiving weekend with me, and thank you Kurt Huber for inviting us to capture some new images for your business!

We LOVE Blue Grotto!!! [3

Check out the photos here
Legendoerre - 5/22/2018 7:28 PM
Rating Added: 3
Good visibility but pretty much no fish and a little boring
SantaFeSandy - 9/21/2017 8:30 AM
I went scuba diving here on 9/19/2017. Average viz: 91-100ft/28-30m. Water temp: 71-75°F/22-24°C.
Tues. 9/19/17 - Helped new OW diver Ashley Peterson get acquainted with running lines underwater at Blue Grotto. First dive was a warm-up and get acquainted dive, playing with Virgil and doing photos. Second dive was working with a reel and 2 spools. Ashley did great with her buoyancy control, setting and retrieving the lines, as well as gas management. Ashley told me that including our dives she now has about 30 dives total.
fletch944t - 5/28/2017 2:31 PM
Rating Added: 4
I just happened to go to Blue Grotto as a backup because a shark’s tooth dive in Venice got blown out (two days).

I called the Gotto on a Thursday morning before Memorial Day weekend and, as luck would have it, they had one pet-friendly cabin remaining for Thursday night only.

I left Venice around 11:30 AM and arrived at Blue Grotto around 3:30 PM. I was hoping to find a dive buddy but, the place was almost deserted and everyone who was staying there had already finished diving for the day.

So, I paid a little extra to have the resident dive instructor (Kevin) take me on a guided tour of the Grotto. Also, one of the other staff members went along a videoed the dive. I have no idea what they’re going to do with the video.

Anyway, we did about a 40 minute dive. We went all the way to the bottom of the cavern (actually around 91 feet - Bottom is 100 feet). On the way back, we stopped in the air bell (30 feet). Kevin asked me if I wanted to go back and see anything again or if I wanted to do anything else. Honestly, I was so tired from the drive up and the dive to that point, I had to pass.

For those who have never been to Blue Grotto before, I would highly recommend paying the extra money for the guided tour to get familiar with the spring. For me, having never been there before, and just getting back into diving after a long absence, it was well worth it.
ram04769 - 5/28/2017 9:30 PM
Glad to hear you were able to dive BG. Very beautiful place and terrific staff. I’ve been diving there twice so far and thoroughly enjoyed my time there. Plus, I got to meet Virgil.
SantaFeSandy - 5/28/2017 9:52 PM
Very nice story. I’ll pass it back to Kevin, Kurt, & Susan.
SantaFeSandy - 5/28/2017 9:53 PM
By the way, next time, if you need a buddy, I’m only 5 miles away.
fletch944t - 5/30/2017 2:42 PM
Thanks Sandra. I’ll definitely going back to BG. And, due to time constraints, did not get to do the swim-throughs over at Devil’s Den. As diving is not an option for my better-half, I’ll be in constant need of a dive buddy.
SantaFeSandy - 5/06/2017 9:34 PM
I went scuba diving here on 4/28/2017. Average viz: 71-80ft/22-24m. Water temp: 71-75°F/22-24°C.
Chris0867 - 5/03/2017 8:35 AM
I went scuba diving here on 9/7/2013. Average viz: 11-15ft/3-5m. Water temp: 71-75°F/22-24°C.
First open water certification dive