How to choose dragon boat paddle?

 Do a sitting test:

Sit on a flat surface and stand your paddle up next to you, blade down. If you can reach up and grab the handle, this might be a good paddle length for you. 

Do a standing test:

Stand on a flat surface and stand your paddle up next to you, blade down. If you can fit at least three fingers between the handle and your armpit, this might be a good paddle length for you. 

Do a real test:

To truly find the right paddle, you have to add water! With that in mind, the easiest way to determine your ideal paddle size is to use paddles of different lengths for a few minutes at a time during practice. Simply swap paddles with your teammates and see what length works best for you.