How many laps is 4 K?

Why when you dive into a swimming pool looking for a coin its not exactly where it appears to be? On a 12 foot wave what size fins should you use on your surfboard? What happens when you fall out of a kayak? Why do kayakers wax there boats? What type of flood defences are there? Are there 5 oceans in the hydrosphere? What are facts about a water loom? What is the primary water source for a recovery unit condensing coil? What is a rising or overflowing body of water onto a land that is normally not there? Does it matter if you use iodized salt for salt water pools? What happened if you catch or corner a leprechuan? How can you turn yourself into a Mermaid? What does sitewach mean? How can you get hot water faster at all the bath room it take long time to get hot? Can you get aRash from swimming in algae lake? Why are bays important? What is the lowest point on Oahu? What do crabs eat living in tidewater pools? What needs to be installed in the ground for a gas or electric pool heater on a existing in-ground pool? What kind of girls fit better with one-piece swimsuits?