Quietest months and calm seas
Robs Bottom
Advanced Tofo ridge dive with megafauna and swim-throughs.
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Local operator required
Robs Bottom is best run by a local operator that can handle the longer transfer, the current, and the drop-off.
About Robs Bottom
Robs Bottom is a deep Tofo ridge dive reached by a southbound transfer from Tofo Beach through Whale Shark Alley. The ridge and surrounding wall are known for big marine life, especially small-eye stingrays, manta rays, reef sharks, whale sharks, and humpback whales, with overhangs and swim-throughs adding structure to the dive. It is an advanced site that rewards a guide who can read current and timing on the day.
Research Estimate At Robs Bottom
Conservative baseline from public research. No community dives logged yet.
Where Is Robs Bottom?
Robs Bottom Planning Details
Depth range, seasonality, and planning context.
Reported Depth
23m - 34m
Depth Note
Deep ridge with a reef top around 23-27 m and wall sections down to 30-34 m.
Best Season
After Easter through early July is often the calmest window; October to March is also strong for whale-shark season.
Typical Conditions
Warm water, variable visibility, and currents that can change quickly with tides and winds.
Safety & Access At Robs Bottom
Hazards, restrictions, and access requirements.
Key Hazards
Access Restrictions
Far-reef logistics and operator-specific surcharge may apply.
Legal Notes
Check operator booking rules and marine-park fee handling before the dive.
Local Intel For Robs Bottom
Community notes to help plan your visit.
Scuba Diving
Advanced scuba is the best fit; the deep ridge and swim-throughs reward confident buoyancy and current awareness.
Freediving
Not a casual freedive site; the depth and current make it scuba-first.
Snorkeling
Not a snorkel-first site because it is deep and current-sensitive.
Robs Bottom Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Robs Bottom.
Exposure Profile at Robs Bottom
Directional shelter context for incoming swell.
Wildlife at Robs Bottom
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Robs Bottom
Community dive logs and visit reports for this site.
No Dive Logs Yet
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Dive Spot Log Averages At Robs Bottom
Average conditions based on logged dives & visits.
Robs Bottom Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Robs Bottom Guide - Sources and Updates
Last Updated
Research Sources
Visibility and current range
Drift dive and big fish
Far-reef surcharge and Tofo conditions
Reef top, wall, and swim-throughs
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