Dive Site: Mary Island

About Mary Island

Mary Island, often referred to as Mary's Island, is a celebrated dive destination in the Solomon Islands, renowned for its pristine marine environment and abundant large marine life. Unlike many sites, an entire day of diving is frequently dedicated to exploring its rich waters, making it a focal point for liveaboard itineraries in the region. Its remote location contributes to its unspoiled nature, free from the pressures of overfishing or extensive diving tourism, ensuring a vibrant and healthy ecosystem. The topography around Mary Island is characterized by flourishing reefs and diverse underwater structures that attract a remarkable concentration of pelagic species. While specific depth ranges for Mary Island itself are not always detailed, Solomon Islands diving generally offers excellent marine life between 6 and 24 meters, allowing for extended bottom times. The island's surrounding waters are a magnet for schooling fish and larger predators. Divers at Mary Island can expect to encounter an array of significant marine creatures, including numerous reef sharks, vast schools of jacks and barracuda, and occasional sightings of tuna. Bumphead parrotfish are commonly observed, and lucky divers might spot a Napoleon wrasse. The diverse fish life is a testament to the healthy coral gardens and nutrient-rich currents that define this site. Typically, diving at Mary Island is conducted from tenders launched from liveaboards. This allows for flexible entry and exit points, with the tender often waiting to pick up divers directly after their ascent. The conditions are generally easy, with good visibility and often mild currents, though specific points like "Barracuda Point" highlight areas where exhilarating currents can create impressive fish aggregations, making for dynamic wide-angle photographic opportunities.

Dive site facts: Mary Island

Depth

6–24 m (best marine life)

Typical dive

12–25 m, 70–90 min

Current

Mild to occasionally dynamic

Visibility

15–30 m

Water temperature

28–30°C

Entry

Tender / drift entry

Level

Open Water Diver, current experience helpful for specific points

Dive type

Reef, pelagic, schooling fish

Night dive

Possible

Region / port

Western Province

Coordinates

-8.35, 157.4

Conditions & Currents

Mary Island often features mild currents, contributing to generally easy diving conditions, though specific areas like Barracuda Point can experience more dynamic flows. Dive planning typically accounts for these currents, allowing divers to drift along with schools of fish. Tenders are commonly used for entry and exit, providing convenient pick-ups and drops to minimize effort against any current.

Marine life & sighting chances

Reef Shark

common

Giant Trevally

common

Barracuda

common

Bumphead Parrotfish

common

Tuna

occasional

Napoleon Wrasse

occasional

Lionfish

common

Cuttlefish

occasional

Green Turtle

occasional

Manta Ray

rare

Dive profile & how the dive runs

Diving at Mary Island typically begins from a tender, which drops you directly onto the reef. Most dives here focus on exploring the vibrant outer reef slopes and pinnacles, often following the natural contours of the reef. Divers generally descend to depths between 12 to 25 meters to observe the schooling fish and larger pelagics that frequent these areas. You will typically drift along with the mild currents, allowing the ecosystem to unfold before you. Barracuda Point, a prominent feature, is excellent for wide-angle views of swirling fish schools. After an extensive exploration of approximately 70-90 minutes, allowing for long dives in the shallower areas, you will gradually ascend. The safety stop is usually conducted in the tranquil shallows of the reef, rich with anemones and reef fish, before the tender collects you at your surfacing point.

Underwater photography

Mary Island is a premier destination for wide-angle photography, capturing the dramatic schools of barracuda and jacks, along with numerous reef sharks. A fisheye lens is highly recommended to encompass the vast schools and the expansive reef topography. For individual pelagics like tuna or Napoleon wrasse, a wide-angle zoom lens can also be effective. While macro opportunities are present in the Solomon Islands generally, Mary Island's primary draw is its large marine life, so prioritize wide-angle setups. Ensure your strobes are powered for broad coverage, and maintain excellent buoyancy to avoid disturbing the schooling fish. Be patient and allow the marine life to approach you for the best shots, particularly within the dynamic currents at Barracuda Point.

Combine with nearby dive sites

• Kavachi Submarine Volcano

  A unique site known for its active underwater volcano and specific marine life.

• Munda - Shark Point

  A renowned site for shark encounters near Munda.

• Leru Cut

  Famous for its dramatic light-filled chasm cutting through an island.

• Mirror Pond

  A cavern dive surrounded by jungle in the Russell Islands.

Getting there & logistics

Access to Mary Island typically involves liveaboard trips departing from Honiara, the capital of the Solomon Islands. International flights usually arrive at Honiara International Airport (HIR). Most liveaboard itineraries range from 7 to 10 days, allowing ample time to explore remote sites like Mary Island and surrounding areas. Permit and park fees are generally included in liveaboard packages, as Mary Island is often part of a broader itinerary encompassing the Western Province and other significant dive regions. Liveaboards are the most practical and recommended way to visit this and other remote, pristine dive sites, offering comfortable accommodation and travel between locations, often during meals or overnight.

Safety & environment

The nearest recompression chamber is located in Honiara, emphasizing the importance of proper dive planning and conservative profiles. In case of a medical emergency, evacuation can be complex and time-consuming, primarily relying on liveaboard tenders and local transport to reach medical facilities. Therefore, comprehensive dive insurance that covers emergency medical treatment and evacuation is essential for all divers. Site-specific hazards at Mary Island are minimal beyond typical diving risks, but strong currents can occasionally occur, especially at points like Barracuda Point, requiring divers to be attentive to their dive guide's instructions and maintain good buoyancy control. Always dive within your training limits and stay hydrated in the tropical climate.

Who it suits — and who it doesn't

FAQ

Mary Island FAQ

Liveaboards diving Mary Island

These liveaboards may visit Mary Island on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Solomons Master

Solomon Islands

16 guests

$401/day

Emperor Bilikiki

Solomon Islands

20 guests38 m

$561/day

Pacific Master

Solomon Islands

20 guests30 m

$268/day