Wave at the world's deepest hot tub, the AquaCiser. Wave quickly, because that guy looks like he is going down with his monoreme. The manufacturer, Ferno Performance Pools, claims that you can do triathlon training without even leaving the comfort of your own home—if cycling round the utility room is your bag, that is. Never mind the rowlocks, there's also a reversible treadmill on the bottom of the tub, which is 53 inches deep. With 57 jets, five pumps and throttle control valves, the AquaCiser comes in at a cool $17,000. [Ferno Performance Pools via Book of Joe]
The confusion of this picture makes me think of Demetri Martin's bit about the confusion of swimming — because sometimes you do it for fun and sometimes you do it not to die. Check your wardrobe to see which applies at the moment.
If I need to train for a triathlon, I'll probably just dig a trench in my backyard and then bungee cord myself to the tree — no jets needed.
Then again, those jets in the right place can be oh so nice ...