One of the other advantages of being on an island with the vantage
point of sunsets over the ocean was that we were able to observe
the celebrated "green flash" phenomena on multiple occasions.
See
https://en.wikipedia.org/wiki/Green_flash
It was visible naked eye but observing was dramatically enhanced by using
binoculars.
Thankfully two of our team members had brought with them their Canon
image stabilized binos including a really nice brand-new pair of 18x50's.
A bright green arc would first appear on the left and right side of the circumference of the sun.
This would linger for a couple of seconds and then suddenly the two arcs would join across the top,
creating a bright green rim. The whole event would last possibly 3 seconds in all through
binos and a fraction of that naked eye.
We never tired of watching it and the setting sun signalled it was time
to enjoy a margarita.