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Red Sea — Sharm El Sheikh · boat

Thomas Reef

Editorial plate — compiled from published sources, not yet confirmed by a verified diver. Dived here? Verify this plate.

Straits of Tiran

27.99110°N, 34.46070°E

The smallest Tiran reef: a colourful wall to a fan-lined ledge at 25 m, with the deep Thomas Canyon reserved for technical divers.

Depth
—

Typical 25 m

Vis
20–30 m

22–28 °C

Current
strong
Health
Unscored

Awaiting verified ratings

Geo (surface approx.)
27.99110°N, 34.46070°E

Coordinates from a cited source.

Entry / access
boat

Small enough to circle in one dive when conditions allow, Thomas Reef is a drift from the southern tip along walls of soft coral and gorgonians to a ledge at about 25 m. Beyond the ledge a canyon runs parallel to the reef from 35 m to around 90 m, crossed by arches that only technical divers should visit. Currents can reverse or stall a dive quickly.

Difficulty
intermediate

Advanced Open Water recommended; Thomas Canyon is technical-only

Best season
—
Last reviewed
20 Oct 2026 by editorial

Hazards

  • high · Strong, unpredictable currents at the north tip and behind the reef
  • high · Thomas Canyon (35 m to ~90 m) is beyond recreational limits
  • medium · No moorings; rough western side can complicate pickups

Marine life

Typical: whitetip reef shark, leopard shark, turtle, longnose hawkfish, barracuda, tuna, snapper, grouper

Durable site rating

Multi-axis score

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Condition reports

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Living record

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Questions people search

Is Thomas Reef suitable for beginners?

intermediate — Advanced Open Water recommended; Thomas Canyon is technical-only

Sources

Where sources disagree

Canyon floor ~90 m (Dive The World) vs 92 m (Circle Divers); arches near 35 m (LiveAboard.com FAQ).

Listed by: Circle Divers

Related sites

Other intermediate plates in Red Sea — Sharm El Sheikh.

Durable multi-axis scores sit on the rating plate. File a timestamped condition report, CoralWatch colour, or debris card on today's report. Public averages stay verified-only. Book at an Andaman dive centre.