Rather than swimming a distance, I'd recommend taking more of an intervals type approach.
How about looking somewhere like Zoggs Swim4fitness (free to register and you get a series of swim sessions tailored to your goal).
First things first, though, be sure your technique is good - swimming's not like other sports, in that you can't get away with dodgy technique! (At best you'll find it much much harder work than it should be, at worst you'll end up with an injury)
I've been asked by a local charity to help them look into chip timing for their popular annual 10K. I don't know where to start! Can anyone help?
- how expensive are chip timing systems to hire and use? - do you need a certain amount of runners to make it a viable expense? - in your experience, has chip timing attracted a greater amount of numbers than clock timing? - where would they get the system from?