Roatan, the largest of the Honduran Bay Islands, located in the Western Caribbean. Not necessarily a knitterly type of place, but a fantastic scuba diving place. As in, warm tropical seas and beautiful reefs. So I did lots of diving, but very little knitting. You can find some top side pictures here, but I don't have any underwater pictures to share, sorry.
Sock knitting on the plane, a little bit of spindling in my room, and I frogged a project that I'll redo later. Here's my Jenkins Swan Turkish spindle with some lovely white Shetland wool.