Le Sirius Wreck

Trou Aux Biches, Mauritius

Depth

21m

Visibility

9m - 27m

Entry

Boat

Experience Level

Beginner

About Le Sirius Wreck

The Le Sirius was classified as a 5th grade British semi rigged Frigate. She sank about 100 years ago and was first discovered in 1964, fairly intact and resting in a depth of 21 meters. In 1986, due to illegal explosive use, the wreck was partially damaged. Some of the artifacts that was found on this wreck includes a very rare French regiment uniform button, coins, a sword hilt and pieces of an octant. She can be accessed by all level divers. Today resting in a silty bottom, surrounded by corals and teeming with marine life. Excellent wreck dive with great history and much to see and explore. Due to the silty bottom, this wreck dive may have limited visibility.

Le Sirius Wreck Dive Info

Terrain & Features

Wreck, Reef

Entry Type

Boat

Max Depth

21m

Visibility Range

9m – 27m

Experience Level

Beginner

Best Gas Mix

21% – 45%

O₂

CNS Load (35 min)

13% at 19m / 36%

O₂

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Marine Life

Eels
Groupers
Pelagic Fish
Rays
Trigger Fish
Tropical Fish
Turtles
Various

Weather Conditions

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Dive Operators near Le Sirius Wreck

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Location

Location details missing.

Dive Site Hazards

Deceptive Entry Openings — Openings may become restrictive inside due to angle, collapse, or corrosion.
Surge-Induced Internal Silt Shift — Internal surge can move silt and debris without direct contact.
Partial Overhead Environment — Many wrecks limit direct ascent even without full penetration.

Fine Rust Particle Silt-Out — Disturbed rust particles can rapidly reduce visibility.

Hidden Depth Variations — Complex reef topography can conceal depth changes, leading to unintended profile variations.

Distraction from Marine Activity — High fish activity can distract divers and delay depth or gas awareness.

Rapid Surge Direction Changes — Surge near reef structures can reverse direction quickly, pushing divers sideways into unexpected areas.

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