Clan MacWilliam

Vavaʻu's harbor keeps a proper shipwreck within sight of the café docks: the Clan MacWilliam, a British steamer that caught fire and sank at anchor in 1927. She sits upright in the still water of one of the Pacific's most protected harbors, which has preserved her shape — masts, holds, and deck machinery readable under a fur of sponges and black coral bushes. Lionfish and squirrelfish hold the shadowed spaces, and visibility swings with harbor plankton rather than weather. For a destination where diving plays second fiddle to whales, she is a genuinely satisfying wreck dive, calm enough to be many visitors' first at depth.

その瞬間のために: An upright 1920s steamer in flat-calm water; deck machinery under decades of growth; a short boat ride from town.

地形: A steamship of roughly 130 m sitting upright on the harbor floor at about 30 m

エントリー: Minutes from the Neiafu waterfront in the sheltered harbor; descend the mooring or buoy line onto the hull.

危険生物・リスク: Depth on the harbor floor; low light and silt inside the hull; monofilament from harbor fishing.

保全: An old ship softening with age — no penetration beyond daylight and no pulling on rails that now hold more growth than strength.

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）。