running aground; being stranded; grounding; beaching
reef; sunken rock; unforeseen difficulty
to run aground; to strike a rock; to be stranded on a reef; to reach a deadlock; to come to a standstill; to run into difficulties
atoll; circular coral reef
barrier lagoon; coral-reef lagoon
fish reef; reef where fish live and breed
refloating; getting off a reef; getting off the rocks
stranded ship; ship that has run aground