Meet the site
Devils Marbles is a series of bommies on the bottom at the southern end of Lady Elliot, marked by the southern public mooring buoy, according to the Oceanity guide. Like the other southern sites, it can experience stronger currents, and it lies in the area where mantas are often found feeding when in season. The bommies provide structure and shelter for reef fish, and the current brings pelagic visitors. The dive is usually run from the mooring or as a short drift. It suits divers with some current experience. Published information on this site is limited to the Oceanity guide to Lady Elliot's 28 named sites, so depths and layout given here are estimates based on neighbouring sites; the resort dive team will brief the specifics. All Lady Elliot sites lie within a Marine National Park (Green) Zone and are dived only with the resort's dive shop, on short boat rides of 10 minutes or less. Lady Elliot's reef is the southernmost part of the Great Barrier Reef, and its mix of sheltered western sand plains and exposed eastern walls means almost every site is within a few minutes of the next. Manta rays are most abundant from about May to August, humpback whales pass from July to October, and turtles nest on the island's beaches from November to March, so the same site can feel quite different depending on the season.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Devils Marbles (Lady Elliot Island) is recorded as Pinnacle/Bommie in Lady Elliot Island. The listed access is boat (day trip). Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Devils Marbles (Lady Elliot Island) suitable for my certification?
The record lists Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Devils Marbles (Lady Elliot Island) through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Manta rays (in season), reef fish, pelagic fish, turtles, hard corals
Location
A series of bommies on the bottom at the southern end, marked by the southern public mooring buoy.
Facilities nearby
Lady Elliot Island Eco Resort: PADI dive shop (gear hire, courses, fills), rinse area, lockers; resort restaurant, bar and accommodation. Island access by resort flights only.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
oceanity.com.auladyelliot.com.auRecord updated 26 Sept 2026. Source claims are being reviewed.

