In many water sports you will occasionally fall into water fully clothed. You may lose your balance, or your boat capsizes, or you decide to jump in for a spontaneous swim. It is a good safety exercise to practice this often.

The trapped air will give you bouyancy, but the resistance from the water logged clothes will make swimming and climbing out a bit more difficult.

Required clothing: Plenty of robust clothes like a hooded sweatshirt, jeans, rainwear, socks and shoes.

Today's lesson gets more interesting if you wear a lot of clothes. The more you practice falling in, the better you'll be prepared for when it happens unexpectedly.

Jumping and Falliing
Find a pool or a beach with good depth and without underwater obstructions. Now jump in and notice how the water slowly seeps into your clothes. Look out for air pockets that give you bouyancy.

As a powerful exercise jump in and climb out in quick succession several times. If you get in 5 or more jumps per minute you're doing well.

Capsizing
This is great fun. Wear a hooded sweatshirt on top of your other clothes for extra weight; it makes this game more realistic.

Take a boat out and stay near the beach. Try out how stable it is. Lean over a bit. Then tip it over so you fall into the water. Now turn the boat upright in a way that it doesn't hold too much water.

You'll find it an interesting challenge to climb back into the boat wearing a lot of heavy waterlogged clothes. Repeat until you're failry exhausted so you get a good idea what an emergency would feel like.