

Best for advanced divers, 25-39m, shore & boat entry, mild current.
The Sunken Reef is an advanced dive site located 1000 metres off the coast of Antofagasta, Chile. The reef structure lies at depths between 25 and 39 metres, with an average depth of 32 metres. Divers experience mild currents, though surge and swell are consistent hazards. Visibility ranges from 10 to 25 metres. Water temperatures are cool, fluctuating between 14 and 16 degrees Celsius throughout the year. Access is possible via boat or shore, though the latter requires navigating a surf and shore-break. The site supports night diving, and local facilities include a dive shop and air fills.
-23.46980, -70.61970
Shore entry involves a surf and shore-break, so wait for a lull and move fast with your kit secured before the next set arrives. Air fills and a dive shop are available on site, but confirm boat departure times in advance as conditions can shift quickly in this exposed stretch of coast.
The site lies 4 kilometres northwest of Antofagasta's harbour.
Recorded at this site
Depth
25-39m
Visibility
10-25m
Skill Level
Advanced
Entry
Shore & Boat
Boat required
Water Temp
14-16°C
Current
Mild
Typical Dive
45 min
Best Time
Jan
The site ranges from 25 to 39 metres deep, with an average depth of 32 metres.
No, this site is intended for advanced divers due to the depth and environmental conditions.
The site is accessible by boat or shore. Shore entry involves a surf and shore-break, requiring careful timing.
Yes, there is a dive shop on site that provides air fills.
Yes, night diving is permitted at The Sunken Reef.
Diving at The sunken reef in Antofagasta requires the following certifications: Open Water. Always dive within your training limits.
The best months to visit The sunken reef in Antofagasta are January. Conditions outside these months can still be good but are less predictable.
The sunken reef in Antofagasta typically has mild currents that most divers can handle comfortably.
Visibility at The sunken reef in Antofagasta typically ranges from 10 metres to 25 metres. Conditions vary with weather, tides, and seasons.