The coolest things I saw on my first day of beachcombing:
Rainclouds and sunshine fighting it out over the mountains.
Geologic map of Fiji)
Mud-Dauber Wasp nests in a shallow sea cave. There was no mistaking the loud hum that drew me in to investigate. These wasps are not at all aggressive, unlike the ones I've known my whole life. There were a lot of them in our bure who would just fly in and out through the thatched walls as they pleased. It was extremely disconcerting until we realized they were only mildly interested in us. Every now and then one would come and hover at eye level until one of us asked it to go away. They flew so slowly I even walked into them on a couple of occasions! So when I saw this mass:
I've finally identified that bean: it's Entada phaseoloides, and it does seem to be called Walai in Fiji, although it has several other names, and it isn't a tree, it's a vine. Here's a shot of the plant: http://www.flickr.com/photos/dweickhoff/5491307518/ and the seed pods: http://www.flickr.com/photos/dweickhoff/5491304504/