Silvertip Bank (Burma Banks)

The Burma Banks are open-ocean seamounts far west of the island chain, and Silvertip Bank carries their story. In the 1990s this plateau was legendary for bold silvertip sharks circling divers in numbers; decades of regional long-lining thinned that spectacle, and today's visitor should expect a wilder, emptier dive where silvertips still appear, singly or in small patrols, alongside dogtooth tuna, rainbow runners, and grey sharks on lucky days. The bank itself is a hard-coral prairie with nowhere to hide from the current and a horizon-less blue in every direction. It remains an expedition dive in the truest sense: reached rarely, guaranteed never.

その瞬間のために: Silvertip encounters with honest odds, oceanic-plateau atmosphere, true expedition remoteness

地形: Flat-topped oceanic seamount plateau beginning around 15-20 m

流れ（カレント）: Unsheltered oceanic bank; current and swell govern everything, including whether the stop happens at all.

エントリー: Far offshore on the Burma Banks; only some itineraries make the crossing, and only in settled weather.

危険生物・リスク: Strong current, blue-water ascents off a submerged bank, long swells, and extreme distance from assistance.

保全: Shark declines here are documented history, not rumor; treat every sighting as the valuable data point it is.

ナイトロックス: ここでは効果的です——このエリアのプロファイルは、ナイトロックスが無減圧潜水時間を有意に延ばせる水深帯にあります（適切なトレーニングを受けていることが前提です）。