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Resort and dive-support context for the Suncoast side.
Dive Spot Guide•
Grottos
Boat-access soft-coral pinnacle dive in Bligh Waters with tide timing.
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 spotsExplore nearby spots on the map
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
Site conditions, restrictions, and access requirements.
Site Conditions
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.
Wildlife at Grottos
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Grottos
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Grottos
Average conditions based on logged dives & visits.
No community dive data has been logged here yet. Be the first to record a dive and seed the averages.
