Arno’s Underwater Reef

Type:

Scuba DivingFreediving

Entry:Unknown

Difficulty:Advanced

Tags:

Reef

About This Dive Spot

Arno’s Underwater Reef features a drop-off with an overhang starting around 28–35 m, with depths extending beyond 50 m. The dive can finish on a shallow soft-coral garden in about 5 m. On favorable days the current can be strong, and divers are advised to begin close to the drop-off to avoid long swims. Expect reef life including fish, corals, nudibranchs, and the occasional manta passing through.

Planning details

Reported depth and seasonality.

Reported depth

5m - 50m

Depth note

Soft coral garden around 5 m; overhang on the drop-off at 28–35 m; can go deeper than 50 m.

Typical conditions

Strong current can occur on the most favorable days.

Safety & access

Hazards, restrictions, and required precautions.

Hazards

Strong currentOverhead environment

Safety notes

Current can be strong on favorable days; start close to the drop-off to reduce effort and avoid extended swim times. Overhang present at depth.

Local intel

Community notes to help plan your visit.

Tailored notes for different activities.

Scuba

Overhang at roughly 28–35 m on the drop-off, with the option to extend the dive deeper than 50 m before finishing shallow.

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Spots Near Arno’s Underwater Reef

📍 2.4 km

Manta Ridge

⚓

Manta Ridge is a dive site off Mansuar Island known for manta ray sightings at a cleaning station. Divers commonly watch mantas around 10 m while holding position in current.

📍 2.5 km

Manta Sandy

⚓

Manta Sandy is a dive site located between Arborek and Mansuar Islands, with a sandy area where manta rays are often seen. The site is known for manta rays visiting cleaning stations attended by wrasses. Depths range from 10 to 30 meters, and access is by boat.

📍 4.1 km

Arborek Jetty

Not Set

A challenging dive around a jetty known for prolific fish life, making it a popular spot for underwater photography. Large schools can be seen sheltering beneath the structure, including jacks hunting smaller baitfish. On one side of the jetty there are areas of soft and hard corals along with giant clams, and the east side of the island features coral growth and pinnacles.

📍 4.4 km

West Mansuar

Not Set

The dive begins over a sandy and rocky bottom where macro life is a highlight, with the chance of larger pelagics passing in the blue. The route continues toward the tip, where stronger flow concentrates fish life. A shallow coral garden tops the site, and mantas or schools of mobulas may occasionally cruise past.

📍 6.1 km

Sauwandarek

Not Set

A jetty dive in Raja Ampat where much of the time is spent exploring around and beneath the pier structure. Swimming out from the jetty leads to reef scenery with schooling fish. Under the jetty there are giant clams, and the area is known for very large green turtles and varied macro life.

📍 8.2 km

Felici garden

Not Set

Felici garden is a coral plantation and conservation area managed by an NGO, created as a new coral planting location with an aim to establish around 1 hectare of coral growth. The site is positioned as a place to visit to assist with the project and learn about corals. Diving here includes sandy and rubble zones suited to macro life alongside the coral planting areas.

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Frequently Asked Questions

What's the best entry point at Arno’s Underwater Reef?

Entry at Arno’s Underwater Reef is detailed in the spot description above. Look for specific landmarks, access paths, and any tide or condition requirements. Local divers often share updated entry tips in their dive logs.

What conditions are best for diving Arno’s Underwater Reef?

Optimal conditions at Arno’s Underwater Reef depend on several factors including tide, wind, and season. Check recent dive logs for current condition reports and patterns. Generally, calmer seas and high tide provide better visibility and easier entry.

What is the maximum depth and typical visibility at Arno’s Underwater Reef?

Depth and visibility information for Arno’s Underwater Reef can be found in the spot details and recent dive logs. Conditions can vary significantly based on weather, tide, and season. Always plan your dive according to current conditions and your certification level.

Are there any safety considerations or local etiquette at Arno’s Underwater Reef?

When diving Arno’s Underwater Reef, respect local regulations, marine life, and other water users. Be aware of any specific hazards like currents or boat traffic mentioned in the spot description. Follow Leave No Trace principles and local diving etiquette.