Some of Australia's best diving is at the end of a long ride: the Yongala from Townsville, the outer Great Barrier Reef from Cairns, the Abrolhos from Geraldton. This list ranks day-trip sites by the recorded boat time from the usual departure point.
Updated daily from the directory. 25 sites listed.

1. Tasmania North & North-West · TAS
Boat ride: 100 min · Rare granite swim-throughs on a remote Hunter Group island.

2. Flinders Island & Furneaux Group · TAS
Boat ride: 80 min · Three contrasting sides around a lighthouse island, plus the remains of the Merilyn.

3. Flinders Island & Furneaux Group · TAS
Boat ride: 75 min · Trypots of a whaling ship lost at Clarke Island in 1853.

4. Tasmania East Coast · TAS
Boat ride: 75 min · An expedition dive on Maria Island's eastern tip: 15 m walls of yellow zoanthids and spires in exceptionally clear water.

5. Flinders Island & Furneaux Group · TAS
Boat ride: 75 min · One of Australia's oldest shipwrecks (1797), whose survivors' ordeal opened Bass Strait to sealing.

6. Tasmania East Coast · TAS
Boat ride: 70 min · A sheltered second dive on Maria Island's remote eastern coast.

7. Flinders Island & Furneaux Group · TAS
Boat ride: 70 min · The Furneaux Group's best wreck: an 1875 iron ship with swim-throughs and a fish-filled intact stern.

8. Tasmania East Coast · TAS
Boat ride: 60 min · Rated 10/10 by the regional guide: granite caverns at 30-40 m lit by a flue-like opening, with clouds of butterfly perch and seals.

9. Tasmania East Coast · TAS
Boat ride: 60 min · A remote granite islet at the mouth of Wineglass Bay with a sheer drop to 40 m and clouds of butterfly perch.

10. Tasmania East Coast · TAS
Boat ride: 60 min · Granite boulders at 20-25 m below Schouten Island's highest peak, with unusually large banded morwong.
11. Flinders Island & Furneaux Group · TAS
Boat ride: 60 min · A small granite reef with a colourful central rock and very large crayfish.

12. Tasmania East Coast · TAS
Boat ride: 55 min · House-sized granite boulders fallen from the cliffs onto the bottom at 20-25 m, in usually excellent visibility.

13. Tasmania East Coast · TAS
Boat ride: 55 min · Sandstone ledges and a large swim-through at 10 m in the shelter of Schouten Island's cliffs.

14. Tasmania East Coast · TAS
Boat ride: 55 min · Stark granite steps with seals and strong clean water in the Schouten Island group.

15. Tasmania East Coast · TAS
Boat ride: 50 min · Rated among Tasmania's best dives: a colony of hundreds of playful fur seals and a well-lit cave through the island.

16. Flinders Island & Furneaux Group · TAS
Boat ride: 50 min · Hunting for megalodon teeth eroding from limestone ledges.
17. Bruny Island & D'Entrecasteaux Channel · TAS
Boat ride: 50 min · Remote island with sheer cliffs, sandy gullies and colourful sponges – one of the region's top-rated reef dives.

18. Tasmania East Coast · TAS
Boat ride: 50 min · A sheltered, clear-water weed garden - the easy second dive at Schouten Island.

19. Tasmania West Coast · TAS
Boat ride: 50 min · The infamous entrance to Macquarie Harbour, with two shallow historic wrecks on its spits.

20. Tasmania East Coast · TAS
Boat ride: 50 min · Shallow granite mazes and swim-throughs with huge banded morwong and often excellent visibility.

21. Tasmania West Coast · TAS
Boat ride: 50 min · An 1894 steamer's stern and steering gear breaking the surface behind the Hells Gates breakwater.

22. Tasmania West Coast · TAS
Boat ride: 50 min · A tragic 1907 wreck on the shoal that bears its name, periodically uncovered by shifting sand.

23. Bruny Island & D'Entrecasteaux Channel · TAS
Boat ride: 50 min · Remote volcanic islets with swim-throughs, seals and clean Southern Ocean water off Bruny's southern tip.

24. Flinders Island & Furneaux Group · TAS
Boat ride: 45 min · The scattered remains of an 1865 composite barque off Cape Barren Island.

25. King Island · TAS
Boat ride: 40 min · The site of Australia's worst civil maritime disaster (1845), with anchor and capstan on an exposed reef.
Usually yes: distance from the coast means clearer water, healthier reef and bigger animals. Take seasickness precautions and expect weather cancellations on exposed runs.
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