Dive Site: Twin Rocks

Dive site facts: Twin Rocks

Depth

6–18 m (max 20 m)

Typical dive

12–18 m, 50–60 min

Current

Calm

Visibility

10–25 m

Water temperature

27–30°C

Entry

Boat

Level

Open Water

Dive type

Macro, reef, critter hunting

Night dive

Possible

Region / port

Anilao, Batangas

Coordinates

13.752, 120.939

Conditions & Currents

Currents at Twin Rocks are generally calm, making it suitable for divers of various experience levels. However, as with any dive site, conditions can vary, and divers should always heed local guide and captain briefings regarding daily tidal influences and potential shifts in current. Entry and exit procedures for boat dives should be confirmed beforehand to ensure a smooth experience. Visibility is typically good, ranging from 10 to 25 meters, but can be affected by plankton blooms or recent weather. Water temperatures are consistently warm, between 27-30°C, so thermoclines are not typically a concern. The calm conditions generally allow for relaxed dives, focusing on macro exploration rather than challenging drifts.

Marine life & sighting chances

Nudibranchs

Year-round · common

Barracuda

Year-round · occasional

Mantis shrimp

Year-round · common

Coleman shrimp

Year-round · occasional

Porcelain crabs

Year-round · occasional

Ribbon eels

Year-round · occasional

Anthias

Year-round · common

Damselfish

Year-round · common

Lionfish

Year-round · common

Surgeonfish

Year-round · common

Batfish

Year-round · common

Yellow snapper

Year-round · common

Jackfish

Year-round · common

Dive profile & how the dive runs

Your dive at Twin Rocks typically begins with a boat entry, followed by a descent to the base of the two prominent rock formations, which lie at about 14-16 meters. You'll spend significant time exploring the crevices and surfaces of these rocks, looking for macro life, nudibranchs, and various crustaceans, often following a spiral path around them to cover different angles. The guide will lead you along the reef slope, maintaining depths generally between 6 and 18 meters, allowing ample bottom time for photography and observation. The dive concludes with an ascent towards the shallower reef tops, often around 5-7 meters, where your safety stop will take place, offering additional opportunities for observing juvenile fish and colorful corals before a boat pick-up.

Underwater photography

Twin Rocks is a macro photographer's dream, making a macro lens (60mm or 100/105mm) essential for capturing the site's tiny inhabitants. Consider a snoot or small strobes for creative lighting and isolating subjects against the vibrant coral backgrounds or dark volcanic sand. Due to the abundance of critically camouflaged creatures, patient observation and excellent buoyancy control are paramount to avoid stirring up sediment and to get close enough without disturbing the marine life. Listen to your local guide; they possess an unparalleled ability to spot the most elusive critters, significantly enhancing your photographic opportunities. Keep an eye out for nudibranchs, shrimp, and rare pipefish. While less common, a wide-angle setup might capture the general reefscape and large sea fans if conditions permit clear visibility.

Combine with nearby dive sites

• Verde Island Passage

  A long day trip from Anilao, known for spectacular walls and diverse marine life.

• Sombrero Island

  An island municipality within Anilao's dive region, offering various dive sites.

• Apo Island

  Further south in the Visayas, renowned for its marine sanctuary and sea turtle populations.

• Anilao — Secret Bay

  Also known as Mainit Muck, a famous muck diving site near Twin Rocks for rare critters.

• Cathedral Rock

  Another well-known dive site in Anilao, often included in itineraries.

Getting there & logistics

To reach Twin Rocks, you'll typically fly into Manila's Ninoy Aquino International Airport (MNL). From Manila, Anilao is a convenient 2.5 to 3.5-hour drive south to the Batangas province. Transfers can be arranged via private car or public bus services. Most dive trips to Twin Rocks are organized through resorts in Anilao, which offer daily boat dives to various sites in the area. Dive packages often include multiple dives per day, with itineraries frequently combining Twin Rocks with other nearby Anilao sites like Secret Bay or Cathedral Rock. While no specific park fees are mentioned for Twin Rocks directly, divers should anticipate a small marine park fee, usually around $2.50 USD per day, for diving in the broader Anilao region.

Safety & environment

While Twin Rocks is considered beginner-friendly due to its calm currents and moderate depths, adherence to safe diving practices is essential. Always stay within your certification limits and follow the guidance of your dive master. The nearest recompression chamber is located in Batangas City, roughly an hour's drive from Anilao. In case of a diving emergency, evacuation to the nearest medical facility would involve boat and then land transport, emphasizing the need for comprehensive dive insurance that covers emergency medical care and evacuation. Plan dives conservatively, especially concerning bottom time and ascent rates, given the prevalence of multiple daily dives in the area. Always double-check entry and exit procedures with your boat crew and guide before each dive.

Who it suits — and who it doesn't

FAQ

Twin Rocks FAQ

Liveaboards diving Twin Rocks

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

Infiniti

Philippines

25 guests39 m

Seadoors

Philippines

16 guests25 m

Resolute

Philippines

16 guests35 m

Dolphin

Philippines

18 guests31 m

Navis 1

Philippines

22 guests23 m

Philippine Siren

Philippines

16 guests

Palau Sport

Philippines

24 guests38 m

Philippines Aggressor

Philippines

26 guests43 m

Stella Maris Explorer

Philippines

20 guests33 m

Solitude One

Philippines

24 guests52 m

Atlantis Adventurer

Philippines

16 guests33 m

Philippines Aggressor II

Philippines

26 guests43 m