The Grotto

Reef DiveReef Dive | Boat access

Crayfish Dive Site Inside Port Phillip Open Water Rated Reef Dive Site Slack Water

Depth: 12 metres (39 feet) to 18 metres (59 feet)

The Grotto is named after the many small caves and large overhangs that form this site. Located on top of the Lonsdale Wall system, this area is teaming with marine life and a photographers dream. This site gradually increases in depth to around 23 metres in a system of interesting rock formations and overhangs and swim-throughs.

There are spectacular Blue Devil fish, Crayfish, curious Leather Jackets, nudibranchs, mosaic sea stars, yellow sea spiders, Magpie Perch and Boarfish. On occasion Port Jackson Sharks have been sighted snoozing in groups or singularly under rock ledges. One of the most popular dive sites, always enjoyable and great for new divers.

Divers have the opportunity to catch crayfish (Southern Rock Lobster) at this dive site. Remember your catch bag, current Victorian Recreational Fishing Licence, rock lobster measure, and cray tags. Please abide by all current fishing regulations if you intend to catch crays. See How To Catch Crayfish for practical cray hunting advice from The Scuba Doctor.

Latitude: 38° 17.107′ S   (38.285117° S / 38° 17′ 6.42″ S)
Longitude: 144° 38.357′ E   (144.639283° E / 144° 38′ 21.42″ E)

Datum: WGS84 | Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2019-02-16 02:37:41 GMT
Source: GPS
Nearest Neighbour: 12lb Reef, 36 m, bearing 316°, NW
Depth: 12 to 18 m.
Dive only on: SWF, SWE.

DISCLAIMER: No claim is made by The Scuba Doctor as to the accuracy of the dive site coordinates listed here. Should anyone decide to use these GPS marks to locate and dive on a site, they do so entirely at their own risk. Always verify against other sources.

The marks come from numerous sources including commercial operators, independent dive clubs, reference works, and active divers. Some are known to be accurate, while others may not be. Some GPS marks may even have come from maps using the AGD66 datum, and thus may need be converted to the WGS84 datum. To distinguish between the possible accuracy of the dive site marks, we've tried to give each mark a source of GPS, Google Earth, or unknown.

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