I just found this heart rate monitor called the Mio. It is ok for the water and costa about US $100.00. The manufacturers website is: http://www.gophysical.com/
I will not wear a chest strap in the pool, but I am interested in training with a heart rate monitor to see how useful it is.
There is a review at: realrunner.com/.../miopage.htm
It is available in the US & Canada.
