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Just finished diving Mary's on the south side of Roatan.
Incredible dive. 5 mooring balls in the immediate area and there were still two boats circling us.
The site is a triangular plateau where the reef top is in 15 to 25 feet with super dense and healthy corals, fans and reef fish.
We started from the easternmost buoy and after a quick trip to the shoulder of the reef dropped down to 50 feet and explored along the wall face.
Gradually dropping to 75 feet where we met the chasm that Mary's is famous for. It is about 8 to 12 feet wide and acts like a double wall dive and the chasm is clear through to 100 feet below and to the top of the reef at 25 feet. So 75 feet of vertical double walls to explore and perhaps 100 feet or more of horizontal chasm until you could out on the other side.
We bottomed out at 104, with my technical dive computer being far more conservative on NDL limits than Darryl Lapaire's computer.
We came up a little and found the forward most chasm and explored that one and did one more gentle dip back down to 90 to come back out on original side.
Another would class view of the wall with massive Nassau Groupers and schooling fish as we slowly made our way back to the reef shoulder.
Then we puttered around in the amazing coral garden under Ad Astra until our air hit 500.
Only thing at all that was annoying is that the Roatan Aggressor was on another mooring and their divers had very poor ettiquete and were zooming here and there and it felt at times like a Black Friday sale.
Clearly the fish here are never alone.
Originally posted on Facebook on November 29, 2018.
A year earlier, a solo dive captured the same reef magic—until a cruise ship's engines rumbled through his body at 70 feet.
Real nice afternoon solo dive
A year earlier, a quieter day at Red Slave in Bonaire — same joy, fewer crowds, different ocean.
Another great day of diving underway aboard Ad Astra!
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Published: November 29, 2018 5:45 PM
Last updated: March 8, 2026 3:07 AM
Post ID: 15ad9bf8-a8af-4250-8dec-a5e8bd3c48e5