Thresher sharks occasionally encountered at seamounts in the Banda Sea and around Alor. Less predictable than Malapascua.
Encounter overview
Diving or snorkelling with thresher sharks in Indonesia during July is good season, with an encounter probability of approximately 65% under normal conditions. The pelagic thresher shark is one of diving’s most sought species – a sleek, deep-water animal that visits seamount cleaning stations at dawn, its elongated tail longer than its entire body.
Best sites
- Komodo (Batu Bolong)
- Alor (Irian Jaya)
- Banda Sea
What to expect
Thresher sharks visit cleaning stations at Malapascua (Philippines) and Monad Shoal primarily at dawn. The cleaning window is narrow – typically 30-60 minutes after first light. The sharks arrive from depth and depart back to open water as sunlight increases.
Water conditions in July
Water temperature in Indonesia typically ranges 26-30ยฐC. Visibility at Komodo (Batu Bolong) in July is generally good; check local liveaboard or dive operator reports the week of your trip for specific conditions. Drift, muck, pelagic is the primary dive style in Indonesia.
Practical tips
Arrive at the cleaning station before sunrise. Stay low on the reef – kneeling or prone, avoiding silhouette. No flash photography. The encounter lasts seconds to minutes per shark. Patience is the technique.
Getting there
Fly into Bali (DPS), Komodo (LBJ), Raja Ampat (via Sorong SOQ). Raja ampat biodiversity, komodo mantas, cendrawasih whale sharks, muck diving. Visa on arrival (VoA) available for most nationalities. Currency: Indonesian Rupiah (IDR).
Is July a good time to visit Indonesia for thresher shark?
Yes – July is good season for thresher sharks in Indonesia. Encounter probability is around 65% on a dedicated trip. Best sites include Komodo (Batu Bolong), Alor (Irian Jaya), Banda Sea. Check availability at Komodo (Batu Bolong) as spaces fill quickly in peak months.
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