The view or two from my "office"

[JohnM]

It was just a zodiac cruise around the island to see the bird life, there was no landing.
Story is much as was reported. Some Zodiacs got stuck when the tide dropped more quickly than they expected. Additional zodiacs were sent out and some people were able to walk from their stranded zodiac to the new ones and return to the ship. Guests who couldn’t manage the walk had to wait for the tide to rise again to be able to get back to the ship.

Ah - that explains the apparent anomaly in the photos of pax walking across the reef using walking poles, when ostensibly they were only on a Zodiac cruise where poles would not be necessary. They must have ferried walking poles out to them.