Dilumacad Island (Helicopter Island)

Dilumacad Island (Helicopter Island), El Nido

Known locally as Dilumacad Island, this iconic dive site in El Nido earns its popular nickname, "Helicopter Island," from its distinctive silhouette resembling a helicopter at rest. Located just a short boat ride from El Nido town, this advanced dive site offers a truly unique experience, combining two dramatically different underwater profiles in a single exploration.

The Open Reef

For divers seeking vibrant reef ecosystems, the gently sloping open reef of Dilumacad Island is a captivating start. Descending to a maximum depth of 25 meters, divers will find a thriving environment with strong coral coverage, including impressive hard and soft corals. This section of the dive site is particularly welcoming for Open Water certified divers.

• Marine Life: We frequently encounter resident Green Sea Turtles (Chelonia mydas) gracefully gliding over the reef or resting on ledges. Schools of colorful Parrotfish (Scarus sp.) graze on corals, while various species of Clownfish (Amphiprion ocellaris) can be spotted nestled in their anemone homes – indeed, all seven species of anemone fish have been observed here. Keep an eye out for the striking Red Lionfish (Pterois volitans) and the camouflaged Frogfish (Antennariidae spp.) and Jawfish (Opistognathidae spp.) in the sandy patches and rubble zones. Blue-spotted Ribbontail Rays (Taeniura lymma) are also commonly seen resting on the sandy bottom.
• Conditions: The current on the reef is typically mild, making for a relaxed and enjoyable dive.

The Dilumacad Tunnel

For those seeking an exhilarating challenge, the Dilumacad Tunnel presents a dramatic overhead swim-through that cuts directly through the island. The entrance to this natural limestone tunnel is found at a depth of 12 to 15 meters and it stretches for approximately 35 to 40 meters in length. Inside, the tunnel widens into a spacious cavern before narrowing again towards the exit.

• Hazards & Requirements: Due to the overhead environment and the potential for silting, this section of the dive site is classified as advanced. We recommend this dive only for divers holding an Advanced Open Water certification and with a minimum of 30 logged dives. Mandatory flashlights are required to illuminate your path and appreciate the unique formations within.
• Marine Life: Inside the tunnel, divers may witness schools of shimmering Copper Sweepers and other fascinating macro life such as Electric Oysters and Scorpion Fish. As you exit, keep a lookout for larger pelagic species that sometimes frequent the area.

The water temperature at Dilumacad Island is consistently warm, ranging comfortably from 26°C to 30°C year-round, allowing for pleasant diving conditions. Visibility generally ranges from 10 to 30 meters, with the clearest conditions typically experienced from March to June. Whether you're exploring the vibrant reef or venturing into the mysterious tunnel, Dilumacad Island promises an unforgettable diving adventure in El Nido.