HAVING RETURNED FROM MY OFFLINE VACATION, I should note that I spent a lot of time diving with In Depth Watersports, a new operation run by Nat Robb, whom I’ve known for years and who some of you may remember from my rebreather story and video a few years ago. He and his lovely sidekick Liz are now providing boutique dive services on board a converted Navy Seal Rigid Inflatable Boat, whose enormous speed makes it easy to get to the dive sites without a lot of wasted time. Nat’s an expert at everything from open-circuit to rebreathers, and the personalized service is better than the bigger operations. If you’re planning on Cayman diving, I recommend you try ’em out.