According to my insect identifier app, these are Lime swallowtail butterflies. Not sure but they did look lovely. We were having a picnic - and a swim at Maret Islands. The crew were keeping a very close watch on the water for crocodiles but none were to be seen thank goodness.
@30pics4jackiesdiamond Well true - they swim under the water of course. It would have been pretty hard to spot them, but the water was lovely and clear.
Glorious photo, caterpillars around soon!