

Best for advanced divers, 19-64m, boat entry, moderate current.
Sonnier Bank is a series of eight peaks rising from the seafloor, featuring a rugged terrain composed of siltstone and claystone. The topography is covered in fire coral, with two of the peaks reaching depths within recreational limits. The site ranges from 19 to 64 metres in depth, with an average of 35 metres. Access is by boat only, and the site is suited for advanced divers due to moderate currents and potential hazards including down currents, entanglement, and strong currents. Visibility typically ranges from 30 to 64 metres. Night diving is possible at this location, and the site offers a 3/5 rating for snorkelling.
28.33330, -92.45000
Sonnier Bank is a known hotspot for ciguatera fish poisoning, so be aware of the FDA advisory before consuming fish caught in or near the sanctuary.
Located 80-125 miles from the Texas and Louisiana coastlines; requires boat travel.
Recorded at this site
Depth
19-64m
Visibility
30-64m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
19-26°C
Current
Moderate
Typical Dive
50 min
No nearby dive sites found within 50km.
The site ranges from 19 to 64 metres deep, with an average depth of 35 metres.
No, Sonnier Bank is intended for advanced divers due to the depth, potential for strong or down currents, and other environmental hazards.
Sonnier Bank is located 134 kilometres offshore and requires a boat for access.
Yes, the site has a snorkel rating of 3/5.
Diving at Sonnier Bank in The South requires the following certifications: Open Water. Always dive within your training limits.
A 5mm wetsuit is recommended for diving at Sonnier Bank in The South. Water temperatures range from 19°C to 26°C.
Divers at Sonnier Bank in The South should be aware of jellyfish, lionfish, stonefish, sharks. These encounters are generally rare and avoidable with proper awareness. Follow local safety guidance and maintain a respectful distance from all marine life.
Expect moderate currents at Sonnier Bank in The South. Good buoyancy control and some drift diving experience is helpful.
Visibility at Sonnier Bank in The South typically ranges from 30 metres to 64 metres. Conditions vary with weather, tides, and seasons.