About this spot
Aer Bajo sits in the Lembeh Strait, one of the world's premier macro diving destinations. The site's black sand bottom attracts an outsized population of small, rare fish and invertebrates that hide nowhere else. Depths range from 5 to 20 meters, making it accessible to intermediate divers and a strong choice for photographers hunting for jawfish, gobies, and nudibranchs. The dive follows the contour of the black sand slope. Most action happens in the shallower sections where the substrate meets patches of rubble. Current is typically mild, but check conditions with local operators before descent. Night dives here unlock a different cast of characters—nocturnal critters emerge from the sand after dark. Lembeh's reputation rests on consistent finds of unusual species in compact areas. Aer Bajo delivers that same promise. Even divers who've logged hundreds of dives in the strait often spot something new. The site works year-round, though local knowledge of seasonal patterns is essential. Access requires a boat from Lembeh's main anchorages. Most divers book through established dive operators based in the strait. Bring a macro lens or rent one locally if serious underwater photography is your goal.
📖 Guide: Diving in Indonesia: 323 Sites, Mantas to Micro-critters
Best months
Dive types
Trip essentials
Everything you need before you pack — checklist, sun, logistics.
Trip checklist
- 🛂 Visa-free or visa-on-arrival
- 📜 C-card + dive insurance (DAN)
- 📔 Dive logbook
- 🧴 Reef-safe sunscreen SPF 50+
- 🔌 Plug type C/F · 230V adapter
- 💊 Seasickness meds + ear drops
- 📱 Offline maps + emergency contact
Quick facts
- 🌓 Moon First quarter · 47%
- GPS
› Sustainability disclosures
From your departure country
- Visa: Visa on arrival · 30 days max
- Flight: 12h · direct
- Jet-lag: 12h east · 8 days recovery
FAQ
›What's the best time to dive Aer Bajo?
Aer Bajo works year-round. Seasonal shifts affect current and visibility, so confirm conditions with local operators before booking. Macro life is consistent across months.
›Is this dive suitable for beginners?
Aer Bajo is rated intermediate. The 5–20 meter depth range is safe for trained divers, but the site rewards experience with macro spotting. Night dives here require advanced skills.
›What marine life should I expect?
Aer Bajo is known for rare macro species: jawfish, shrimpfish, dragonfish, gobies, and nudibranchs. Black-sand habitats concentrate species that few other dive sites offer.
›How do I get there and do I need permits?
Book a boat dive with operators in the Lembeh Strait. No special permits are required beyond standard Indonesian tourist entry. Dives depart from main anchorages in the strait.
