Marine Life deep dive
Lombok's waters host three main sea turtle species — green turtles (most common), hawksbill turtles (rarer, endangered), and olive ridley turtles (seasonal visitors). Gili Air's east coast has the most reliable shore snorkel encounters with a resident population of 60+ green turtles. Conservation programs at Gili Eco Trust and Gili Shark Conservation protect nesting sites.
# Sea Turtles of Lombok: Species, Sites, and Ethics
Turtle encounters are one of the top reasons tourists come to Lombok. The Gili Islands have built entire tourism ecosystems around turtle snorkeling, and "will I see a turtle?" is the single most common question at dive shops and guesthouses. The good news is that yes, you probably will — Lombok has healthy turtle populations, especially around the Gili Islands and specific dive sites.
This guide covers the species, the best places to see them, their conservation status, and how to behave ethically around wild sea turtles.
Green turtles (Chelonia mydas): The most common turtle in Lombok waters. Green turtles feed on seagrass and algae, which makes them predictable — they congregate in shallow seagrass beds like the ones on Gili Air's east coast. Adult green turtles reach 1–1.2 meters shell length and 80–150 kg. Their name comes from the green color of their body fat (from algae diet), not their shell. Expect to see greens on 90% of Gili snorkel trips.
Hawksbill turtles (Eretmochelys imbricata): Much rarer and critically endangered. Hawksbills have distinctive pointed beaks, ornate patterned shells, and feed on sponges rather than seagrass. You'll find them around coral reefs rather than seagrass beds. Sighting rate on dive trips is maybe 10–20%. These are the turtles with the beautiful "tortoiseshell" patterned shells that historically made them targets for the shell trade — now protected internationally.
Olive ridley turtles (Lepidochelys olivacea): Seasonal visitors, most common during nesting season. Smaller than green turtles (shell length 60–70 cm, 35–50 kg). Olive ridleys occasionally appear on deep dive sites off Belongas Bay or south coast. Less commonly encountered than greens or hawksbills by recreational snorkelers.
Gili Air Turtle Point (east coast): The most reliable shore-accessible turtle spot in Lombok. A resident population of about 60 green turtles feeds year-round on the seagrass flats. Morning snorkelers (7–10am) typically see 3–5 turtles per hour. Free, accessible, no boat required.
Gili Meno inner reef: Green turtles feed on the seagrass beds around Gili Meno, accessible via boat tour or longer snorkel from Meno's shore. Sighting rates are similar to Gili Air.
Turtle Heaven (Gili T dive site): Dive site with consistent turtle encounters, part of the standard Gili T fun-dive rotation. Depth 5–15 meters, suitable for snorkelers with good breath-holding or divers with any experience level.
Belongas Bay dive sites: Advanced dive sites with occasional turtle sightings mixed with bigger pelagic species. Not the best choice if turtles are your only goal, but good for divers wanting variety.
Gili Nanggu and secret Gilis: Less commonly visited, occasional turtle sightings on shore-accessible reefs.
Morning (7–10am) is the reliable window. Turtles come up to the seagrass flats to feed as the sun warms the shallows, before boat traffic and tourist activity disturb the water. By midday many turtles retreat to deeper water.
Afternoon (2–4pm) is a secondary activity window as water cools and tourist boat traffic decreases. Less reliable than morning.
All three species are classified by IUCN:
All three are protected under Indonesian law. Harassment, capture, or harm to turtles is illegal and enforced with fines and prosecution. The Gili Eco Trust and Gili Shark Conservation run educational programs, habitat protection, and nesting site monitoring.
Wild turtle encounters are privileges, not rights. The right behavior is simple:
Don't touch turtles: Touching disturbs them, can damage their protective shell mucus layer, and causes stress. Turtles touched by humans sometimes avoid that area for weeks afterward, denying other observers the encounter. Gili Eco Trust enforces anti-harassment rules and reports offenders.
Don't chase turtles: If a turtle swims away, let it. Chasing after a fleeing turtle causes stress and is considered harassment. You might catch up to it for a photo, but you've ruined its afternoon.
Don't block them: Turtles need to surface every 5–30 minutes to breathe. Swimming between a turtle and the surface blocks their air supply and can genuinely hurt them. Stay above or to the side, never between a diving turtle and its eventual surface location.
Maintain 3–5 meter distance: Close enough for great photos, far enough that you're not interfering with natural behavior. Most turtles tolerate human observers at this distance; closer makes them uncomfortable.
Don't feed them: Feeding turtles disrupts their natural foraging behavior and makes them dependent on human handouts. Some tourists feed turtles bananas or scraps — this is harmful, not helpful.
Green turtle nesting on some Gili beaches happens April–August, with eggs hatching 60 days later (June–October). Nesting mothers come ashore at night to lay eggs — these sites are protected, and Gili Eco Trust monitors them. If you happen to be on a beach at night during nesting season, keep lights off and don't approach nesting females. White light disorients both mothers and hatchlings.
Hatchling releases at Gili T and Gili Air are sometimes organized by conservation groups as visitor activities. These are legitimate conservation events when run by established groups — not paid tourist photo opportunities.