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Thresher-focused guide with seasonal and current notes.
Dive Spot Guide•
Big Brother South
Liveaboard south plateau on Big Brother with sharks and current.
Offshore plateau dive with liveaboard access, strong north-flowing current, deep drop-offs, and regular pelagic sightings.
About Big Brother South
Big Brother South is the southern plateau on Big Brother, a deep offshore site known for shark action and current-driven wall diving. The profile runs out into a long plateau before dropping away on the sides, so the dive is more about line choice and current management than sightseeing on a flat reef. Liveaboard entries are normal, and the return can be demanding when the north flow is running. Expect pelagics and sharks rather than sheltered reef life, with coral strongest along the walls and plateau edge.
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Research Estimate At Big Brother South
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 25m
AccessChallenging entry effort
CoralHealthy coral
Aquatic LifeExceptional variety
FacilitiesLimited facilities
CurrentVery strong current
SurgeStrong surge
Where Is Big Brother South?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Big Brother South Planning Details
Depth range, seasonality, and planning context.
Reported Depth
30m - 80m
Depth Note
The plateau begins around 30 m, the point is about 60 m, and the sides drop to over 80 m.
Best Season
September to February
Typical Conditions
Exposed offshore plateau with strong current, deep drop-offs, and blue-water drift diving.
Safety & Access At Big Brother South
Site conditions, restrictions, and access requirements.
Site Conditions
Strong currentDangerous wildlife
Safety Notes
Plan the dive for current direction and ensure sufficient gas and navigation for a potentially difficult return against the flow. Depths exceed recreational limits along the drop-offs and there is potential for shark encounters.
Access Restrictions
Liveaboard only; no shore access.
Legal Notes
Brothers Islands are part of the marine park, so follow park and liveaboard rules.
Local Intel For Big Brother South
Community notes to help plan your visit.
Scuba Diving
Deep plateau and drop-offs with currents; main features start around 30 m and can exceed 80 m along the sides.
Freediving
Not a practical freedive target; the main profile is deep and current-driven.
Snorkeling
Not suitable for snorkeling; the action is deep and offshore.
Recent Logged Visits At Big Brother South
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Big Brother South
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility25m
Activity
No dive activity logged yet.