So, you are getting a smattering of pictures from those three days.
Where we stayed was near an island where pelicans congregate before flying south to Mexico. There were a LOT of pelicans flying around the beach. These pictures almost look fake given the contrast of them to the ocean.
This green sludge is actually the reminents of an ancient forest. Many years ago, a huge storm eroded away sand revealing the old stumps of trees. The stumps when the tide is low reveals neat pools similar to the tide pools where rocks are the little microcisms.