Line Reef

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A named reef from the chart, not a dive site anyone has told us about. It may be a great dive or a sandbar at low tide. If you dive it, log the dive here so the crew knows.

What you'll see (7)

Green Sea TurtleChelonia mydasseen 7× near here

Smooth Giant ClamTridacna derasaseen 3× near here

Bumphead ParrotfishBolbometopon muricatumseen 2× near here

Pineapple Sea CucumberThelenota ananasseen 1× near here

Long-tentacle Plate CoralHeliofungia actiniformisseen 1× near here

Pectinia paeoniaseen 1× near here

Purple-eye GobyBryaninops natansseen 1× near here

Planning a trip

8–12 days

worth going for

Long haul, usually two flights.

5,472km from Singapore — about 24h each way, so two of those days are travel. the only logged site in the area.

When people dive it

Busiest Jan, Feb, Mar, May, Jul, Dec.

From 1,776 logged sightings — when divers are in the water, which is not quite the same as when visibility is best.

Dive Crew is a dive group from Singapore. Members plan trips here, log their dives, and share their photos of each site.

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Season

Prime

October is as good as it gets here.

Southern hemisphere, so the calendar inverts: the good months are the ones that are cold at home.

The year here

JFMAMJJASOND

Best here: June, July, August, September, October.

The Great Barrier Reef and Coral Sea — no monsoon here; the season is rain and water temperature. Written by hand from how the season actually runs, calibrated against what the boats do, since a season that disagrees with the operators is wrong however good the meteorology behind it. It describes most years, not this one: the forecast above is what knows about next week.

Moon and tides

Waning gibbous

70% lit · day 20 of the lunar month

Neap tides

Neap tides — the smallest range of the month, so the weakest currents. Easy conditions and usually the clearest water, though a drift site may barely drift.

New 10 Oct Full 26 Oct

Phase computed here, not fetched. This is the spring/neap cycle, which sets how hard the water moves — not a tide table: no free source publishes high and low water for Southeast Asian reefs, and the range peaks a day or two after the moon does, by an amount that varies with the coast. For times on the day, ask the operator.

Getting there

~19h 9m

door to water, each way · 4 legs

FlightCairns (CNS)~9h 12mFlight time plus the airports at both ends. A connection adds to it.Find flights →
Transferthe jetty~7h 27mRoad transfer to the coast, usually arranged by the resort or liveaboard.Directions →
Ferrythe crossing~2hAt this distance the last stretch is a scheduled crossing rather than a dive boat, so book it before the flight — a missed sailing usually costs a day. Which crossing it is has been worked out from the distance and not from a timetable; ask the operator.
Dive boatLine Reef~30 minThen the dive boat out from the island.

📍 Line Reef on Google Maps 🧭 Route from Cairns

Times marked ~ are estimated from straight-line distance and will be roughly right at best. The road legs are the ones Google Maps answers properly; it will not plan the ferry or the dive boat at all. A dive site's coordinates put a pin in open water, so the map link drops you on the site, not on a jetty.

Details

Country: Australia
Marks: 19°41.000'S 149°12.000'E
Position: -19.6833, 149.2000

On Wikidata →

Where it is

Loading the map…

Nearby

Sightings and photographs from iNaturalist contributors, research-grade records within 6km, under Creative Commons licences. Counts are what divers and snorkellers have bothered to log — a common fish with few records is common all the same.