I wrote about many of the odd-looking next-generation anchors some time ago, and there's another new anchor on the scene:

 It's the Ancora Latina "Raya", and it appears to be yet another concave spade-type design. The manufacturer claims that it has been designed for use in the "extreme" mooring conditions of the Antarctic, the Patagonia Channels, and Tierra del Fuego.

I've never cruised there, so I'm not sure what the specific anchoring challenges are. Anybody who does know, please add a comment to enlighten the rest of us.

Ancora Latina also produces a collapsible version of the Raya called the Tempest. What caught my eye is the simple connection between the fluke and the shank. No fasteners, no tools, and, according to the manufacturer, no chance of separation while in use:

Of course, I'll be very interested in seeing the results of another comprehensive anchor test.