Lighthouse, Komodo: Exploring a Diverse Reef in Varied Currents

Descend onto Lighthouse and you find yourself exploring a colourful reef slope, starting shallow and extending down to 30 metres. This versatile site presents a varied underwater landscape, beginning with healthy soft and hard corals that carpet the shallows. As you transition deeper, the reef transitions, revealing fields of sponges and gorgonians, providing habitat for a wide array of smaller, resident marine life.

The topography here lends itself to exploration, with a gentle slope that invites longer bottom times to observe the intricate details of the reef system. Beneath the ledges and within the coral formations, you'll find leaf scorpionfish (Taenianotus triacanthus) camouflaged against the background, various nudibranchs (Nudibranchia) crawling across the substrate, and the watchful eyes of cuttlefish (Sepiida) and moray eels (Muraenidae) in their crevices.

Beyond the smaller reef inhabitants, Lighthouse is also a site where larger pelagic species make their presence known. Blacktip reef sharks (Carcharhinus melanopterus) and whitetip reef sharks (Triaenodon obesus) are regular patrols, often seen cruising along the reef edge or through the bluer water. Giant trevallies (Caranx ignobilis) move in coordinated schools, adding to the site's dynamic feel.

One of the defining characteristics of Lighthouse is its current. While you can find periods of calm, particularly within the more sheltered sections, it’s not unusual for the currents to pick up, reaching strong levels, especially when diving closer to Castle Rock. These stronger currents attract larger fish and necessitate proper drift diving techniques, allowing you to cover more ground and observe the marine life pushed by the flow.

Additionally, Lighthouse serves as a cleaning station for manta rays (Manta birostris). Observing these large pelagics gracefully circling above the reef, often at shallower depths, offers a different perspective on the nutrient-rich waters of Komodo. Their presence underscores the site's importance within the larger ecosystem, drawing in visitors from the open ocean.

The site's proximity to Castle Rock suggests a connection to the nutrient-rich, current-swept waters that typically characterize that area, fostering the high visibility and vibrant marine life present here. This rich environment supports a complex food web, from the polyps of the hard corals to the predators that hunt along the reef lines, creating an engaging dive for those ready to adapt to varying conditions.