[glopomcyte]

Play soccer. The dodging and springing from side to side helps strenghten your legs and ankles. I play rugby and a little soccer and I find it (soccer)increases my agility in rugby. The scrum work in rugby will also build up calves.

To strengthen calves I suggest running on the beach or in sand (very good and doesn't damage knees and joints). Or there is a weight machine where the wieghts rest on your shoulders and you stand with only the part of your feet on a platform and you lift the weights by standing up on your tip toes. I don't know what the machine is called but it is great for strenghtening calves.

Surfing is good too...

and doing squats can also help.

Peace

Meng