aquaticadventures.com.au · Operator
Boat schedule and certification requirements for Portsea Hole.
Dive Spot Guide•
Portsea Hole
Portsea Hole: advanced boat dive on a steep bay wall
Local operator required
Portsea Hole is normally visited by charter boat or experienced local operator because tide timing and boat handling matter.
Boat-only Port Phillip Bay dive near Portsea Pier, with a steep wall, deep sand bowl, and strong tide timing needs.
About Portsea Hole
Portsea Hole is a boat dive in Port Phillip Bay near Portsea Pier, where a sunken river valley drops into a steep wall and deep sand bowl. The site is known for its overhangs, limestone walls, and rich temperate marine life, especially Blue Devil fish, weedy sea dragons, and pufferfish. It is an advanced dive that rewards good slack-water timing, careful boat awareness, and comfort in cooler, changeable bay conditions. The short approach from Portsea makes it a classic deep-water hit.
•
Research + Early Community Signal At Portsea Hole
Conservative research baseline blended with 1 dive by 1 diver.
VisibilityVisibility: 7m
AccessChallenging entry effort
CoralSome damage
Aquatic LifeExceptional variety
FacilitiesBasic facilities
Crowd / PopularityQuite busy
CurrentVery strong current
SurgeStrong surge
Where Is Portsea Hole?
Community sourced coordinates.
Featured Operators
Loading local operators…
Portsea Hole Planning Details
Depth range, seasonality, and planning context.
Reported Depth
14m - 33m
Depth Note
The hole starts around 14 m and drops to a sand bowl at about 33 m along the northern wall.
Best Season
Year-round, but slack water and calmer bay conditions matter more than season.
Typical Conditions
Deep wall and sand-bowl profile with strong tidal movement and surge sensitivity.
Safety & Access At Portsea Hole
Site conditions, restrictions, and access requirements.
Site Conditions
Boat trafficStrong currentSurge
Safety Notes
Watch the tides, surge, and boats; this is an advanced wall dive and not suitable for snorkelers.
Access Restrictions
Boat access only from Portsea or Queenscliff charters; the site sits inside the marine park.
Legal Notes
Port Phillip Heads Marine National Park rules apply.
Local Intel For Portsea Hole
Community notes to help plan your visit.
Scuba Diving
Advanced boat dive with a steep wall, overhangs, and a deep sand bowl. Best left to divers comfortable with cooler water and strong tidal timing.
Freediving
Not a freedive target; the depth and tidal movement make it a scuba-first site.
Snorkeling
Not suitable for snorkeling.
Wildlife at Portsea Hole
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Portsea Hole
1 community dive logs and visit reports for this site.
Dive Spot Log Averages At Portsea Hole
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility7m
Activity
Total Logs1
Unique Divers1
