That's some serious current there, Stitchawl. I've done drift diving in the Caribbean, but I have to admit it's not my favourite. It's really easy to get your group split up and end up with problems getting everyone back on board. There's always one or two.
Plus, you end up having to swim a fair amount sometimes to get back to the boat, depending on the operator. But this seems like a good solution to that, especially where the fish are more interesting than the coral.
This morning I'm drinking my home-made "Scottish Breakfast" tea blend. It's a mix of Peet's English Breakfast and Murchie's Lapsang Souchong and I'm liking it a lot for a fairly gray and rainy day. I may make up a batch of this. It overcomes the limitations of Peet's Scottish Breakfast blend (which they have now reduced to a twice a year blend, only by the pound.) The Peet's version is just a bit too bland. It's neither smoky enough nor bright enough. This Murchie's Lapsang Souchong is very smoky (really too smoky for me all by itself, frankly) and the English Breakfast is quite bright with a big hunk of Ceylon in it, I would guess.