Patch a Leaky Air Mattress, Inflatable Boat, etc.

Step 3 Go Swimming and Find the Leaks

I put on my wetsuit and jumped into the lagoon with the aircraft carrier and spy ships to find the leak.

This is the first sunny day after a lot of rain so the sun's glare is blinding me.
Also my nordic cave-fish ancestors never got exposed to direct sunlight and evolved away their tolerance for it.

People who can be exposed to sunlight without getting sick don't need to make up stories about being the "master race".