I’d like to see them too. Here are some info that I have gathered so far:
From
White Manta Diving - Maumere-Alor-Banda-Ambon
“Day 4-7. (3 dives x4 days) Ring of Fire; diving around Volcanic Islands and stunning seamounts in search of
hammerheads, encounter many sea snakes, huge schools of fish, reef sharks, tunas, & other pelagic superstars.
Day 8-9. (3 dives x2 days) Diving around Banda Islands with excellent visibility, fantastic coral coverage and tremendous numbers of fish along with potential
Hammerhead sightings, plus a visit to one of the Spice Islands.”
From
Banda Dive sites information - Scuba Diving Resource
“
Karang Hatta is a reef located South East of Pulau Hatta. Its dive sites are the ones closest to the 6000 m deep Banda trench, which makes diving interesting as the chances to see big pelagics are the best here. Schooling trevallies, barracudas, tunas and even chances to see bigger sharks (
hammerheads and grey reef sharks), as well as many turtles can be seen close to this underwater mountain...”
“
Ai Island: north and south-west coast surrounded by beautiful reef wall, full of caves also the habitat for harbors fish. Just as Pulau Hatta, Ai offers some of Banda’s best reefs. The northern sites of the island, for example the dive site Batu Payung (= Umbrella rock), have a rather steep wall with lots of cracks and overhangs whereas the southern reef areas are sloping off down to the sand bottom at 40-50 m. In the south of Ai, occasionally
Hammerheadsharks have been sighted, giving this dive site its name “
Hammerhead point”. Napoleons and turtles can often be seen here, as well.”
From
Dive Spots of Banda Sea - Calico Jack Adventures
“Pulau Nils & Pulau Dusborgh
Pulau Dusborgh has only recently been uncovered to be a hot spot for
schooling hammerheads at this particular time of year.
Nils Desperandum
Nil Desperandum, which when translated means “don’t despair”, possibly refers to
the
ship that was wrecked here centuries ago. A big atoll with a very steep drop off, schooling sharks including
hammerheads, silky and gray reef sharks can be spotted in the deep.”