Banda Sea & Ambon

The Banda Sea in Indonesia's Maluku province combines three very different kinds of diving. Ambon Bay, next to the airport at Laha, is one of the best-known muck-diving areas in Indonesia, with frogfish, Rhinopias and the endemic psychedelic frogfish on dark volcanic slopes; Ambon's south coast adds arches and caves. About 200 km to the south-east, the small Banda Islands (the historic nutmeg 'Spice Islands') are ringed by deep, clear walls with huge sea fans and barrel sponges, plus the hard-coral garden that grew back on the 1988 lava flow of Gunung Api. Further out, liveaboards visit isolated volcanoes and reefs such as Manuk, Serua and Nil Desperandum, known for sea snakes, schooling fish and seasonal scalloped hammerheads. Ambon is kept in this region on purpose: it is the gateway port for every Banda trip and most liveaboards dive both.

Facts

• Best season: Banda Islands: diving roughly Aug–May; Mar–Apr (calm, best visibility) and Sep–Nov (pelagics, hammerheads) are the transition windows. Banda dive centres close in June–July (south-east monsoon). Ambon Bay dives most of the year (Spice Island lists Sep–May). Liveaboards run mainly Sep–Nov, some also Mar–May.
• Hammerhead season: Scalloped hammerheads mainly late September – early November (Suanggi, Serua, Karang Hatta, Run, Manuk); never guaranteed
• Water temperature: 26–30 °C (coolest Aug–Sep with upwelling, warmest Dec and Mar–Apr)
• Visibility: Banda: 10–15 m in Aug–Sep, often 30–50 m in Dec and Mar–Apr. Ambon Bay muck sites: typically 5–15 m
• Getting there: Fly to Ambon (AMQ, at Laha) via Jakarta, Makassar or Surabaya. Ambon → Banda Neira: Pelni ships (8–16 h), car ferry, a weekly fast boat from Tulehu (~5 h) and a small Smart Air plane; schedules change often — check current timetables. Liveaboards embark in Ambon
• Permit / fees: Banda day boats: local marine-park fees per person per day (e.g. Hatta, Ai, the TWP park sites) plus fuel surcharges for distant sites; liveaboards charge around US$200 marine park & port fees per trip. Amounts change without notice — check current fees
• Currents: Moderate on most Banda sites, strong and unpredictable at Ai, Run, Batu Wali and the outer reefs; Ambon Bay is sheltered but can run. Remote Banda Sea itineraries require Advanced + ~50 dives

Season

• Best months: Sep, Oct, Nov, Mar, Apr
• Acceptable: May, Dec
• Poor: Jun, Jul
• Water temperature: 26–30 °C

A remote, mostly liveaboard destination; the main window is September to November during the hammerhead migration. Some sources add March–April; June and July are rainy and rough. Thin data; winter months unknown.

Dive sites (30)

Ambon & Lease Islands

• Air Manis – beginner
• Akoon – intermediate
• Amahusu – intermediate
• Ameth – 12–45 m, intermediate
• Duke of Sparta – 12–40 m, intermediate
• Hukurila Cave – intermediate
• Laha – beginner
• Pintu Kota – 30 m, intermediate
• Rhino City – beginner
• Silale – beginner
• Twilight Zone – beginner

Banda Islands

• Banda Jetty – 5 m, beginner
• Batu Belanda – 24 m, intermediate
• Batu Kapal – 10–40 m, intermediate
• Batu Payung – 60 m, advanced
• Batu Udang – 55 m, advanced
• Batu Wali – 5–30 m, advanced
• Goa Hatta – intermediate
• Karang Hatta – 40 m, advanced
• Karnobol – intermediate
• Lava Flow – 3–40 m, beginner
• Nutmeg Drop – advanced
• Pantai Kecil – intermediate
• Pohon Miring – 30 m, intermediate
• Pulau Suanggi – advanced

Remote Banda Sea

• Gunung Api (sea snake volcano) – advanced
• Koon – advanced
• Nil Desperandum – advanced
• Pulau Manuk – advanced
• Serua – advanced

Operators (7)

• Bluemotion Banda – dive centre, Baba Lagoon Hotel, Banda Neira
• Banda Ocean Divers – dive centre, The Maulana Hotel, Banda Neira
• Spice Island Dive Resort – resort, Laha, Ambon Bay
• Indo Master (Master Liveaboards) – liveaboard, Laha Harbour, Ambon
• Mermaid I & II (Mermaid Liveaboards) – liveaboard, Ambon (Banda Sea departures)
• Aurora (DUNE Liveaboard) – liveaboard, Ambon
• Sea I See Liveaboard – liveaboard, Ambon

Routes (6)

• Banda Sea 'Ring of Fire' 10 nights (Indo Master)
• Ring of Fire Ambon – Banda Sea – Alor – Maumere 11 nights (Mermaid)
• Best of Banda Sea 9 nights (DUNE Aurora)
• Banda Sea 6 nights (Sea I See)
• Banda Islands day trips (Bluemotion)
• Ambon Bay macro 7 nights / 19 dives (Spice Island)

Site positions are approximate unless marked otherwise and are for orientation only — never for navigation. Always dive with a local guide; conditions change with tide and season.