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French Reef is a boat accessible salt water dive site, located at N 25° 02.057’ W 080° 20.893’, Key Largo, FL. This dive site has an average rating of 4.14 out of 5 from 94 scuba divers. The maximum depth is 91-100ft/28-30m. The average visibility is 61-70ft/19-21m.

N 25° 02.057’
W 080° 20.893’ Key Largo Fl. French Reef is one of the most spectacular reef areas in the Keys. There are dozens of ledges, tunnels, and caves; most large enough to swim through. You may want to bring a light for the caves and tunnels. The Hourglass Cave is located 50 feet inshore from buoy F1 and the Christmas Tree Cave is located 50 feet inshore of buoy F3. Each cave offers a chance to uncover hidden sea life. While buoy F5 marks a sandbank with coral ridges around, F6 marks a swim-through and inshore of F7 is a ledge near and old anchor. Located in the center of French Reef is the "White Sand Bottom Cave" which is the largest cave in the area. Depth is from 15fsw to 100fsw. GPS Location: N 25° 02.057’ W 080° 20.893’

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joe_bird - 7/25/2021 5:14 PM
I went scuba diving here on 7/24/2021. Average viz: 51-60ft/16-18m. Water temp: 81-85°F/27-29°C.
bsharp117 - 7/24/2021 10:12 AM
I went scuba diving here on 7/11/2021. Average viz: 21-25ft/6-8m. Water temp: 81-85°F/27-29°C.
joe_bird - 1/19/2021 9:10 PM
I went scuba diving here on 1/18/2021. Average viz: 41-50ft/12-15m. Water temp: 66-70°F/19-21°C.
oceanbound - 9/22/2019 2:48 PM
Rating Added: 5
EAustin494 - 4/01/2018 6:15 PM
Rating Added: 5
This was great viz 80’ and water temp in the 80’s. There were tons of ledges and huge lobster to see and several swim throughs.
sdweller - 12/15/2017 4:26 PM
Here is link to my Dive Center’s page on French. A little more info on the reef.
sdweller - 7/15/2017 9:40 AM
French Reef, when the water is blue and clear, is one of the better reefs in the Florida Keys. It has swim-throughs, but these days many of them are somewhat tight, so there are really only 3-4 that you might want to actually dive through now. But it is probably the reef in the Keys with the biggest coral relief, and much marine life of course, what the Keys are known for. My shop, as well as many in Key Largo, offer trips there frequently.
divercharles - 6/30/2017 4:46 PM
Rating Added: 3
The French has been a big part of my experience gain, and is a wonderful site for all kinds of divers.
LarryMill - 2/16/2017 4:57 PM
Rating Added: 5
Dove this many times. A very nice reef.
Divin_Diva - 11/28/2016 4:24 PM
I went scuba diving here on 12/1/2015.
Black tip reef shark, 5 minutes in the water! Large swell sharks lots to see!
todd999 - 8/16/2016 11:50 AM
Rating Added: 3
lots to see here. I like Christmas Tree Cave
MermaidAshley15 - 7/20/2016 8:54 AM
I went scuba diving here on 7/16/2016. Average viz: 41-50ft/12-15m. Water temp: 81-85°F/27-29°C.
First dive in the Keys and it was amazing! Such beautiful coral and so many amazing fish. This is why I became a diver :)
Musky_hunter - 5/22/2016 10:26 AM
Rating Added: 4
Went in Feb. 2015. Pretty Strong Current. Vis about 20-30’. Highlight was a sea turtle.
Nitediver - 2/25/2016 9:37 AM
Rating Added: 4
Pass throughs were pretty cool. Lots of broken coral from divers with little buoyancy control. Sorry to see this. If you insist on diving coral reefs learn control and surge diving BEFORE you go. Talk to your instructor or the divemasters on the boat get some help.
KFJ408 - 12/29/2015 5:19 PM
I went scuba diving here on 12/28/2015. Average viz: 36-40ft/11-12m. Water temp: 76-80°F/24-27°C.
Lots of small fish, a couple of spiny lobsters.
Jouari - 9/08/2015 4:38 AM
Rating Added: 4
This was one of the sites we dove during training and my very first dive spot. Nerves probably didn’t allow me to enjoy it to its fullest but great spot with plenty of colorful marine life.
ScubaSmacks - 6/25/2015 4:19 AM
Rating Added: 5
06.16.2015 - Awesome swim-throughs!! Lots to explore at this site. Be careful with navigation, as there are SO MANY reefs. Absolutely beautiful, though. I saw a large turtle swimming.
Dima - 6/06/2015 1:17 PM
Rating Added: 5
Amazing swim-through coral arches
mee0214 - 5/23/2015 6:27 PM
Rating Added: 3
Wasn’t my most favorite dive. there was a lot to see, but it all started to look the same...making underwater navigation challenging, and with the current that day, it was quite easy to get WAY off course. Had a pretty sizable swim back to the boat.
lindy - 1/13/2015 3:36 PM
Rating Added: 4
cool to see the hannah m bell wreck here!