Answer:

1 Swimming is an activity that involves moving through the water using your arms and legs. One of the best ways to cool off on a hot summer day is swimming in a cold lake or pool.

Swimming is both a casual activity and a serious sport. To you, swimming may involve splashing through the waves or dog-paddling across a public pool. Olympic athletes, on the other hand, swim distances as far as 1500 meters at unbelievable speeds. As an adjective, swimming describes anything that swims or that's used for swimming, like a swimming hole. You can also poetically describe a crying person's eyes as "swimming with tears.

2Athletics is an exclusive collection of sporting events that involve competitive running, jumping, throwing, and walking. The most common types of athletics competitions are track and field, road running, cross country running, and race walking.

3Arnis is the national martial art sport of Philippines. It is also known as Eskrima and Kali. This sport actually emphasizes weapon based fighting which is done using knives, bladed weapons, sticks and various improvised weapons. It also includes hand to hand combat, grappling and weapon disarming methods.