9M0W team having dinner ahead of their upcoming Spratly Island DXpedition

Trivia DX question!

This island was deleted from the IOTA directory because it was found to be completely submerged at high tide.

Which island is it ?
Which IOTA # was it ? pic.twitter.com/7ASRscEDpF

— DX World.net (@DX_World) December 8, 2021