

Skillion Cave combines a swim-through cavern with a wall drop-off that reaches 22 metres, making it one of the more technically interesting shore dives on the New South Wales central coast. Visibility ranges from 5 to 15 metres depending on conditions, with the cleaner water typically found during the cooler months from May through September. Wobbegong and Port Jackson sharks shelter on the bottom and within the cavern itself, while bull rays cruise the sandy areas below the wall. Jewel anemones and nudibranchs reward slower, attentive divers on the reef structure, and kingfish or bonito occasionally pass through in open water above. Current is generally mild, but surge at the entry and sharp coral demand respect.
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Time your entry carefully by watching the wave sets before committing to the water, as surge inside the cavern can be disorienting and the rock shelves are unforgiving. A reef hook or at least gloves are worth considering given the entanglement risks around the cavern ceiling.
Park at the small car park at the base of the Terrigal Skillion. Gear up and walk down to the rock platform. The entry point is a giant stride from the rocks. It is crucial to only attempt this dive in very calm, flat sea conditions.
The entry and exit over the rock platform is the most hazardous part of the dive and should not be attempted in any swell. Surge can be strong within the cave itself.
Depth
7-24m
Visibility
5-15m
Skill Level
Intermediate
Entry
Shore
Water Temp
16-23°C
Current
Mild
Typical Dive
45 min
Best Time
May, Jun, Jul, Aug, Sep
Skillion Cave in Terrigal, New South Wales requires both Open Water and Advanced Open Water certifications due to the overhead environment and technical challenges of the cave system. The dive site reaches depths between 7 and 22 metres and features multiple hazards including surge, entanglement risks and sharp coral. This is an advanced-only dive site and is not suitable for beginner divers.
Skillion Cave near Terrigal offers both shore and boat access, with parking facilities available at the site. Shore diving eliminates the need for boat charters, making it accessible for experienced divers who can manage surf entry and exit conditions. The site experiences surge and surf which makes shore entries more challenging and requires proper timing.
Skillion Cave hosts diverse Australian marine life including blue groper, wobbegong sharks, Port Jackson sharks and bull rays throughout the cave system. The site's walls feature jewel anemones and numerous nudibranch species, whilst pelagic visitors like kingfish and bonito patrol the entrance. Water temperatures between 16 and 23 degrees Celsius support this temperate species mix year-round.
The optimal months for diving Skillion Cave are May through September, covering the Australian autumn and winter period. During these months, visibility ranges from 5 to 15 metres with mild currents and more stable sea conditions. Water temperatures during this period range from 16 to 23 degrees Celsius, requiring a 5mm wetsuit or thicker.
Skillion Cave presents multiple hazards including the overhead environment itself, surge, surf conditions at entry points, sharp coral and potential entanglement risks. The cave system requires advanced skills in buoyancy control and navigation, particularly when managing surge whilst avoiding contact with walls. These factors combine to make this strictly an advanced dive site unsuitable for recreational Open Water divers without additional training.
Skillion Cave ranges from 7 metres at its shallowest points to a maximum depth of 22 metres. The varying depths allow experienced divers to explore different sections of the cave system whilst managing their no-decompression limits. Visibility at the site ranges between 5 and 15 metres depending on conditions and season.
Skillion Cave near Terrigal has no entry fee for divers accessing the site. Parking facilities are available at the location, and the site can be accessed via shore entry without requiring a boat charter. The only costs involve standard diving equipment and air fills from local dive shops in Terrigal.
Skillion Cave in Terrigal is best suited for divers with some experience. You should be comfortable with your buoyancy and have logged at least 10 to 20 dives.
A 7mm wetsuit or semi-dry is recommended for diving at Skillion Cave in Terrigal. Water temperatures range from 16°C to 23°C.
Skillion Cave in Terrigal has depths ranging from 7 metres to 24 metres.
A typical dive at Skillion Cave in Terrigal lasts approximately 45 minutes. Actual dive time depends on depth, air consumption, and conditions.