Dive Site: Split Rock

About Split Rock

Split Rock is a notable dive site located in Kosrae, Federated States of Micronesia, an island renowned for its pristine ocean and vibrant coral reefs. The site is part of Kosrae's extensive network of dive locations that feature steep, sloping reefs and dramatic vertical drop-offs, showcasing both hard and soft corals in remarkable density. Underwater visibility here consistently ranges from 100 to 200 feet, offering divers expansive views of the diverse marine ecosystem. This specific site offers an exhilarating dive experience, frequently involving drift diving along its topography. Divers can expect to encounter an impressive array of fish species, with the potential to observe around 50 different types during a single dive. The rich coral structures and dynamic water movement contribute to a thriving environment for various marine creatures. Kosrae's triangular shape and central volcanic mountain often create sheltered conditions on at least one side of the island, allowing dive operators to choose optimal conditions daily. This ensures that even with varying weather, excellent diving opportunities are typically available. Divers launch from one of three marinas, with all sites, including Split Rock, being a short 5 to 30-minute boat ride away, making for convenient access to world-class underwater exploration.

Dive site facts: Split Rock

Depth

16 m

Current

Moderate to strong (drift diving)

Visibility

30-60 m (100-200 ft)

Water temperature

27-29°C

Entry

Boat / Drift

Level

Intermediate to Advanced

Dive type

Wall, Drift, Coral reef

Region / port

Kosrae, Micronesia

Coordinates

7.8763° N, 147.1396° E

Conditions & Currents

At Split Rock, divers often experience currents strong enough to necessitate drift diving. Dive guides typically tow a surface float and lead the group with the current flow to ensure a safe and enjoyable experience. If currents shift direction, the guide will adapt the dive plan to continue moving with the flow. Divers should be comfortable with drift diving techniques and managing their buoyancy in moving water. Visibility is generally excellent, averaging 100 to 200 feet, which aids in navigation and spotting marine life even in currents. Water temperatures are consistently warm, ranging from 27 to 29°C year-round, so thermoclines are not a major concern. The presence of currents supports the rich biodiversity found at this site.

Marine life & sighting chances

Fish (numerous species)

Year-round · common

Turtles

Year-round · occasional

Rays

Year-round · occasional

Nudibranchs

Year-round · occasional

Pacific barracuda

Year-round · occasional

Spinner dolphins

Year-round · rare

Whitetip reef shark

Year-round · occasional

Hawksbill turtle

Year-round · occasional

Manta rays

Year-round · occasional

Dive profile & how the dive runs

Dives at Split Rock typically begin with a boat entry, often as a drift dive due to prevailing currents. After descending, divers follow the natural contours of the steep coral walls and undulating reef profiles, enjoying the exceptional visibility. The dive guide leads the group, often towing a surface float, allowing divers to drift with the current and conserve energy while observing the rich marine life. The topography features dense hard and soft corals. The guide will adapt to current changes, potentially altering the direction of travel to maintain an optimal drift. Safety stops are conducted in shallower areas along the reef, where divers can enjoy the vibrant coral gardens before ascending to the surface for boat pickup.

Underwater photography

Split Rock's expansive visibility, ranging from 100 to 200 feet, makes it an excellent site for wide-angle photography, capturing the dramatic wall formations and large schools of fish. Consider a fisheye or wide-angle lens to encompass the cascading coral topography and any schooling barracuda or dolphins that may be present. For macro enthusiasts, there are opportunities to find nudibranchs and other small subjects within the dense coral, requiring a dedicated macro lens. Two strobes are recommended to bring out the true colors of the corals and marine life, especially at depth. Maintain excellent buoyancy control, particularly during drift dives, to avoid contact with the pristine reef. Always prioritize observing marine life without disturbing their natural behavior.

Combine with nearby dive sites

• Hiroshi Point

  Hiroshi Point is a prominent shore and boat dive site located on the southern end of Kosrae in the Federated States of Micronesia.

• Walung Drop-Off

  Walung Drop-Off is a well-known dive site situated off the southwest coast of Kosrae in the Federated States of Micronesia.

• Trochus Sanctuary

  Trochus Sanctuary is a distinctive dive site located north of the mid-point of Kosrae, southwest of the island's airport.

• Shark Island

  Shark Island, situated off the remote island of Kosrae in Micronesia, stands as an exceptional destination for experienced divers seeking…

• The Dwarf Forest

  The Dwarf Forest is a distinctive dive site located off the remote island of Kosrae in Micronesia.

Getting there & logistics

Access to Kosrae, where Split Rock is located, typically involves international flights via Guam, Hawaii, or Manila, followed by island-hopping flights to Kosrae International Airport (KSA). Local dive operators based at resorts, such as Kosrae Nautilus Resort, provide guided boat dives. Dive boats depart from one of three marinas strategically located around the island to ensure optimal conditions daily. All dive sites, including Split Rock, are a short 5 to 30-minute boat ride away. A typical dive day includes two dives with a surface interval featuring local fruits, and a third dive can be added. The standard two-tank boat dive package, including tanks, weights, and lunch, costs approximately $135.

Safety & environment

For diving at Split Rock, dive operators in Kosrae prioritize safety by using experienced dive guides who tow surface floats and conduct drift dives with the group. All dive boats are equipped with oxygen. Divers should ensure they have adequate dive insurance that covers medical emergencies and potential evacuation from a remote location like Kosrae. The nearest recompression chamber would likely be in Guam or potentially further, making evacuation a complex process that requires comprehensive coverage. Site-specific hazards include potential strong currents typical of drift dives, requiring good buoyancy control and comfort with moving water. Always follow your guide's instructions and maintain awareness of your dive profile and air consumption.

Who it suits — and who it doesn't

FAQ

Split Rock FAQ

Liveaboards diving Split Rock

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

Palau Siren

Micronesia

16 guests

$501/day

Solitude Gaia

Micronesia

18 guests40 m

$310/day

Palau Aggressor II

Micronesia

18 guests32 m

$292/day

Black Pearl

Micronesia

24 guests

$390/day

Ocean Hunter 3

Micronesia

16 guests29 m

$350/day

Pacific Master

Solomon Islands

20 guests30 m

$268/day