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Dive Spot Guide•
Grottos
Boat-access soft-coral pinnacle dive in Bligh Waters with tide timing.
Scuba DivingBoatIntermediate
CaveDeepPinnacle
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Grottos is a current-aware Nananu Passage dive with yellow soft-coral pinnacles, swim-throughs, and exposed boat logistics.
About Grottos
A boat-access deep-water dive at the Grottos in Nananu Passage, where several yellow soft-coral pinnacles rise out of open water and a few swim-throughs add variety. It is a current-aware Bligh Waters site that rewards incoming-tide planning and suits divers who are comfortable with exposed boat logistics, moving water, and changing conditions. Marine life is a major draw as well.
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Research Estimate At Grottos
Conservative baseline from public research. No community dives logged yet.
AccessModerate entry effort
CoralPristine, vibrant coral
Aquatic LifeExceptional variety
FacilitiesGood facilities
CurrentStrong current
Where Is Grottos?
This spotNearby spots
Community sourced coordinates.
Grottos Planning Details
Depth range, seasonality, and planning context.
Reported Depth
6m - 30m
Depth Note
Pinnacles start around 6 msw and drop to about 30 msw.
Best Season
Year-round, with incoming tide planning.
Typical Conditions
Best dived on the incoming tide.
Safety & Access At Grottos
Hazards, restrictions, and access requirements.
Key Hazards
Strong current
Safety Notes
Incoming tide is recommended. Swim-throughs present overhead areas, and reef sharks may be encountered.
Access Restrictions
Boat access only; best dived on the incoming tide.
Legal Notes
Follow local marine-protection rules and operator instructions; respect any reserve restrictions that apply in Bligh Waters.
Local Intel For Grottos
Community notes to help plan your visit.
Scuba Diving
Depth range and current/tide timing make it better suited to divers comfortable in deeper water.
Freediving
Only for highly experienced open-water freedivers with strong tide awareness; the site is better treated as a boat dive.
Snorkeling
Not a casual snorkel site; the depth, tide timing, and open-water feel make it a poor fit for relaxed shoreline snorkeling.
Grottos Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Grottos.
Current Snapshot
No data
🌥️Variable
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Surface / Entry
Wind No data · Tide No data
Sea State
Swell No data · Period unavailable
Visibility Outlook
Rain chance No data
Wind
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Swell
No data
Exposure Profile at Grottos
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Recent Logged Visits At Grottos
Community dive logs and visit reports for this site.
No Dive Logs Yet
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Dive Spot Log Averages At Grottos
Average conditions based on logged dives & visits.
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Grottos Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Grottos Guide - Sources and Updates
Last Updated
Research Sources
www.naia.com.fj · Operator Blog
Bligh Waters charter report that includes Grottos at Nananu-i-Ra.
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