LEARN TO DIVE
Learning to Dive on the Gili Islands: A Course Guide
Why the Gili Islands are one of Southeast Asia's most popular places to get certified, and what a PADI or SSI Open Water course actually involves, day by day.
See Gili Islands diving on GetYourGuide ↗Why the Gilis are a magnet for new divers
Alongside spots like Koh Tao in Thailand, the Gili Islands have built a reputation as one of the region's go-to places to learn to dive. The reasons stack up: warm water year-round that doesn't need a thick wetsuit, dive sites a short boat ride from shore rather than hours out, generally gentle conditions suited to first-timers, and a dense cluster of long-established dive centres competing on quality and small group sizes. Add reliably good marine life — turtles especially — and it's easy to see why so many travellers who arrive with no plan to dive leave with a certification card.
What an Open Water course actually involves
A standard Open Water certification course runs over roughly three to four days and has three parts: knowledge development, usually completed as e-learning before you arrive or through classroom sessions with your instructor; confined-water training, where you practise core skills like mask-clearing, buoyancy control and out-of-air procedures in shallow, calm water; and a set of open-water dives — typically four — on real reef sites, where you demonstrate those skills under supervision. Most centres run small groups, sometimes one-on-one, so the pace adjusts to how quickly you're comfortable rather than a fixed schedule.
PADI, SSI and other agencies
PADI is the most widely recognised certifying agency worldwide and the one most Gili dive centres are affiliated with, but SSI (Scuba Schools International) runs an equivalent course recognised just as broadly, and a handful of centres offer other agency options. The certifications are functionally interchangeable for diving purposes — a card from either lets you dive to the same recreational depth limit (usually 18 metres) at dive operators worldwide. The practical difference for most beginners is smaller: which agency's teaching materials and app you'll use, and occasionally price or course length, rather than the quality of the diving itself.
Choosing a dive centre
Not all dive centres are equal, and on islands with dozens of them, it's worth being selective. Look for centres affiliated with a recognised agency, transparent about instructor-to-student ratios, and upfront about group sizes for both the course and any try dives — a crowded confined-water session is a worse start than a smaller, calmer one. Established centres with a long track record on the islands tend to maintain gear better and run a more consistent safety briefing. Reviews that mention specific instructors by name are usually a good signal that the quality is real rather than a marketing claim.
What to expect, budget-wise and time-wise
The Gilis are generally considered one of the more affordable places in Southeast Asia to get certified, though exact pricing varies by centre, season and what's included (some bundle accommodation, others don't) — check the current listing rather than relying on any figure quoted online. Time-wise, block out three to four full days with minimal other plans; the course is genuinely full days, especially with e-learning to finish in the evenings if you haven't done it in advance. Trying to squeeze certification into a shorter island stopover usually means rushing skills that are worth taking slowly.
After the card: what a certification actually unlocks
Open Water certification isn't the end point — it's a licence to dive independently (with a buddy) anywhere in the world, at recreational depths, without needing an instructor alongside you. Many newly certified divers stay on an extra day or two in the Gilis to log a few fun dives and build confidence before moving on. From there, the natural next step for anyone who catches the bug is an Advanced Open Water course, which adds deeper dives, navigation and a taste of specialties like night diving — all of which the Gilis' dive centres also run regularly.
More things to do nearby
Not sure whether to try a dive or take a course?
Leave your email and roughly when you're travelling — we'll send a short rundown of how a Discover Scuba dive compares with an Open Water course, what you'll see on the Gili reefs, which of the three islands suits you, and the honest safety basics.