Layang-Layang (Swallow Reef) dive region

Layang-Layang (Swallow Reef)

Layang-Layang, or Swallow Reef, is an oceanic atoll roughly 7km by 2km in the Spratly Islands, about 300km northwest of Kota Kinabalu in the South China Sea. Start with the blocker: you cannot dive it right now. The atoll's single resort — the only accommodation, sharing the island with a Royal Malaysian Navy station — stopped taking guests around 2020 and never resumed. On 6 January 2025 Malaysia's tourism ministry (MOTAC) revoked its operating licence under Section 8 of the Tourism Industry Act 1992 after it failed to refund deposits to more than 100 divers who had booked since 2020. No reopening date has been announced as of August 2026, and liveaboards are not permitted to work the atoll. Everything below records how it ran historically and what divers reported there. The season was March to August only; the resort closed September to February for the monsoon. The draw is the wall — reef tops in 5–15m fall away past 2,000m — and scalloped hammerheads, which aggregate off the drop-offs March to September and peak March to May. Access was a single charter flight from Kota Kinabalu to the Navy airstrip (LAC), one hour, 20kg baggage limit, with no alternative way on or off the atoll.

What makes it special

  • A 7km by 2km atoll whose reef tops in 5–15m drop away past 2,000m, with no shelf and no intermediate depth
  • Scalloped hammerhead aggregations recognised as an Important Shark and Ray Area — schools of up to about 40 animals, averaging around 20, March to September
  • Shared with a Royal Malaysian Navy station and a 1,367m airstrip; the only inhabited point for hundreds of kilometres
  • Occasional pelagic passers-by reported during surface intervals, including dolphins, melon-headed whales and, rarely, orca

Price range

$$

Trip length

610 days

Diver level

Advanced open water

Trip type

Land based, Shore dive

Price is per person for a typical trip, excluding international flights ($$ = $2,000–4,000).

Historical only — nothing is currently sold. The resort's 2023 rates ran about USD 2,100 for a 6-day fun-dive package and USD 2,350 for the 6-day Flagship Plus (up to 12 dives), rising to about USD 3,730 for 10 days (up to 26 dives) and USD 5,600 for 15 days. Those prices included the return BKI–LAC–BKI charter with airport tax and 20kg baggage, accommodation and five meals a day. A 10% surcharge applied to April departures, in the hammerhead peak. That put a week at Layang-Layang well above the Sabah norm: the charter flight and a single-resort monopoly, not the diving, carried the premium. Anyone still seeing 2026 packages advertised should treat them with caution — the operating licence was revoked in January 2025.

Best time to dive

Best months Operating Closed / no trips
Current
Moderate
Water temp
26–30.5°C (coldest Jan, warmest May)
Visibility
2040m — Commonly reported at 20–40m, with agents citing up to 60m on the best days. The atoll sits in open ocean with no river runoff, which is the main reason visibility held up.
Getting there
Moderate Reachable but with some friction: 1 domestic flight.
Experience
Advanced in practice. Most of the named sites are deep vertical walls with no bottom in recreational range, and the hammerhead encounters happen in blue water off the drop-off. Current is usually gentle to moderate but runs strong at Gorgonian Forest, which is also where the hammerheads are most often reported. Shallow coral sites like Wrasse Strip and The Valley suit less experienced divers. The atoll has no recompression chamber — the nearest is on Labuan, roughly 350km away and reachable only by air.

Nearest airports

  • BKIKota Kinabalu International Airport (The nearest international airport for Sabah, with direct services from Kuala Lumpur, Singapore, Hong Kong, Taipei, Seoul and Tokyo. All Layang-Layang charter flights departed from here.)
  • LACLayang-Layang Airport (Swallow Reef) (A 1,367m military-civilian strip on the atoll itself, operated by the Ministry of Defence alongside a Royal Malaysian Navy station. Reached only by charter from BKI (Nomad N22C, and seasonally ATR72-500); approximately one hour. No scheduled tourist service is running.)

Permit required

Layang-Layang is a Malaysian military installation in the disputed Spratly Islands. Visits required a permit arranged through the resort, with bookings closed at least 14 days ahead so the permit and charter flight could be processed. With the resort's licence revoked, there is no civilian channel to obtain one.

Marine life

rareoccasionalcommonly seenpeak season

Sightings are never guaranteed — the bars show typical likelihood by month.

Reef manta rayMobula alfredi
Sighting likelihood by month
MonthLikelihood
Januaryoccasional
Februaryoccasional
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberoccasional
Novemberoccasional
Decemberoccasional

Reported over the shallow coral at Wrasse Strip and Navigator's Lane, and along The Runway. Operator and agent listings say only 'manta ray', so the split between reef manta and the oceanic species is not confirmed for this atoll; coded as reef manta on the basis of the shallow-reef cleaning-station context.

Pelagic thresher sharkAlopias pelagicus
Sighting likelihood by month
MonthLikelihood
Januaryrare
Februaryrare
Marchrare
Aprilrare
Mayrare
Junerare
Julyrare
Augustrare
Septemberrare
Octoberrare
Novemberrare
Decemberrare

Reported occasionally at shallow cleaning stations or passing in the depths off the wall. No documented aggregation site here, unlike Malapascua across the border in the Philippines — treat any sighting as luck.

Bigeye trevallyCaranx sexfasciatus
Sighting likelihood by month
MonthLikelihood
Januarycommonly seen
Februarycommonly seen
Marchcommonly seen
Aprilcommonly seen
Maycommonly seen
Junecommonly seen
Julycommonly seen
Augustcommonly seen
Septembercommonly seen
Octobercommonly seen
Novembercommonly seen
Decembercommonly seen

The schooling jacks reported at Dogtooth Lair, Gorgonian Forest and The Runway, often listed locally as horse-eye jacks. Densest when current runs on the drop-off.

Bumphead parrotfishBolbometopon muricatum
Sighting likelihood by month
MonthLikelihood
Januaryoccasional
Februaryoccasional
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberoccasional
Novemberoccasional
Decemberoccasional

Reported on the shallow drop-off, including a large individual described as sleeping there. Not the dawn aggregations Sipadan is known for — single fish and small groups.

Grey reef sharkCarcharhinus amblyrhynchos
Sighting likelihood by month
MonthLikelihood
Januarycommonly seen
Februarycommonly seen
Marchcommonly seen
Aprilcommonly seen
Maycommonly seen
Junecommonly seen
Julycommonly seen
Augustcommonly seen
Septembercommonly seen
Octobercommonly seen
Novembercommonly seen
Decembercommonly seen

Reported on most wall dives, particularly D'Wall, Gorgonian Forest and The Runway. The most consistently seen shark on the atoll.

Pygmy seahorseHippocampus bargibanti
Sighting likelihood by month
MonthLikelihood
Januaryoccasional
Februaryoccasional
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberoccasional
Novemberoccasional
Decemberoccasional

On the gorgonians at Crack Reef and along the Gorgonian Forest drop-off. Finding them needs a guide who knows the specific fans, and the current at Gorgonian Forest works against a slow macro hunt.

Sighting likelihood by month
MonthLikelihood
Januaryrare
Februaryrare
Marchpeak season
Aprilpeak season
Maypeak season
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberrare
Novemberrare
Decemberrare

The reason anyone flew out here. The IUCN Shark Specialist Group's Important Shark and Ray Area assessment for Layang-Layang describes predictable aggregations from March to September, peaking March to May, of up to about 40 animals with an average of around 20 — sizeable, but not the hundred-strong walls of sharks the marketing implies. Sightings are off the drop-offs at Gorgonian Forest, Navigator's Lane and D'Wall, usually deep and in blue water, and plenty of divers logged a full week without one. Sightings are commonly reported in April and May specifically; the resort added a 10% surcharge to April departures. October to February ratings reflect an absence of observation, not an absence of sharks — nobody dives the atoll then.

Dogtooth TunaGymnosarda unicolor
Sighting likelihood by month
MonthLikelihood
Januarycommonly seen
Februarycommonly seen
Marchcommonly seen
Aprilcommonly seen
Maycommonly seen
Junecommonly seen
Julycommonly seen
Augustcommonly seen
Septembercommonly seen
Octobercommonly seen
Novembercommonly seen
Decembercommonly seen

Hunting the drop-off edge, with Dogtooth Lair named for them. Also reported at Gorgonian Forest, Shark's Cave and Wreck Point.

Sighting likelihood by month
MonthLikelihood
Januaryoccasional
Februaryoccasional
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberoccasional
Novemberoccasional
Decemberoccasional

Reported on the sand at Shark's Cave and Crack Reef. Occasional rather than dependable — a good day's sighting, not a scheduled one.

Silvertip sharkCarcharhinus albimarginatus
Sighting likelihood by month
MonthLikelihood
Januaryrare
Februaryrare
Marchrare
Aprilrare
Mayrare
Junerare
Julyrare
Augustrare
Septemberrare
Octoberrare
Novemberrare
Decemberrare

Described by dive media covering the atoll as an occasional visitor to the walls alongside greys and hammerheads. Coded rare because the reports are anecdotal and none give frequency.

Green sea turtleChelonia mydas
Sighting likelihood by month
MonthLikelihood
Januarycommonly seen
Februarycommonly seen
Marchcommonly seen
Aprilcommonly seen
Maycommonly seen
Junecommonly seen
Julycommonly seen
Augustcommonly seen
Septembercommonly seen
Octobercommonly seen
Novembercommonly seen
Decembercommonly seen

On the coral slopes at The Valley, The Tunnel, Crack Reef and Wrasse Strip. Consistently listed across site descriptions.

Whitetip reef sharkTriaenodon obesus
Sighting likelihood by month
MonthLikelihood
Januarycommonly seen
Februarycommonly seen
Marchcommonly seen
Aprilcommonly seen
Maycommonly seen
Junecommonly seen
Julycommonly seen
Augustcommonly seen
Septembercommonly seen
Octobercommonly seen
Novembercommonly seen
Decembercommonly seen

Resting on the sandy ledges at Shark's Cave and cruising the shallower reef at Crack Reef and Wreck Point. Reliable year-round in the sense that they live here; only observable in the March–August window.

Dive sites

Worth knowing before you book

  • You cannot book this right now. Layang Layang Island Resort — the only accommodation on the atoll — stopped operating around 2020, and MOTAC revoked its licence on 6 January 2025 after it failed to refund deposits to more than 100 divers. No reopening has been announced as of August 2026, and some booking sites still advertise packages that cannot be honoured.
  • Even when it ran, the season was March to August only. The resort closed September to February for the northeast monsoon, so more than half the year was off the table.
  • The hammerheads are a deep, blue-water, weather-dependent encounter, not a show. The ISRA assessment describes schools of up to about 40 animals averaging around 20, and divers regularly went home having seen none. March to May is the peak; April carried a price surcharge for it.
  • There is no alternative access. One charter flight from Kota Kinabalu to a military airstrip 300km offshore, roughly weekly to three times a week, 20kg baggage limit, and no boat option — liveaboards are not permitted to visit the atoll. If the flight does not go, you do not go.
  • No recompression chamber on the atoll. The nearest is on Labuan, about 350km away, and evacuation means waiting for an aircraft. The resort ran a sick bay with oxygen; that is the whole of the on-site medical capability.
Search flightsFind trips (PADI Travel)Dive insurance (DAN)

Sources & last checked

Checked August 2026

This is a researched draft, not yet human-verified. The seasonality and logistics are drawn from the sources below — confirm specifics (permits, fees, closures) with an operator before you book.

Note on the data: Confidence is low because the load-bearing fact — whether anyone can dive here — is unresolved. Established: the resort ceased guest operations around 2020 (deposits taken from 2020 onwards were never refunded, per Malaysian national press), and MOTAC revoked licence 2992 under Section 8 of the Tourism Industry Act 1992 effective 6 January 2025 (Bernama, The Star, Free Malaysia Today, Divernet). No reopening announcement was found in any 2025 or 2026 source, in English or Malay. Some agent and booking pages still advertise 2026 Layang-Layang packages; those are stale and should not be taken as evidence the atoll is open. operatingSeasonMonths is set to the historical March–August window because the schema requires at least one month — it does NOT mean anything is running in those months. Prices are 2023 published rates and are historical. Site coordinates are approximate positions distributed around the atoll rim, not surveyed dive-site GPS. Water temperature is interpolated from a reported annual range, not per-month data. Hammerhead seasonality is the one claim with a strong non-operator source: the Layang Layang ISRA factsheet (IUCN SSC Shark Specialist Group), which cites citizen-science video 2009–2020 and gives an aggregation season of March–September peaking March–May. Water temperature: Interpolated, not measured: no per-month station data exists for the atoll, so these figures spread a reported annual range of roughly 25–30°C (agents variously cite 27–29°C) across the year, with minC pulled down to reflect cooler water on the deep wall sections rather than surface readings. A 3mm suit was the standard recommendation. Access: From Kota Kinabalu International (BKI), one charter flight of about an hour covers the 300km to the atoll's own airstrip (LAC), from which the resort is a few minutes' walk; there is no boat alternative, liveaboards are not permitted, and no civilian flights are currently operating.