The days and nights had become one long stretch of nothing. It seemed there was only the sea and the sky left, the rest of the world has just gone. Dad and son sat in the tiny dingy, thinking, sleeping, daydreaming, hallucinating, hoping and praying to be saved. The sinking of the fishing boat haunted them but they were far away from that now and everything else. Large waves rocked the boat, the sky grew black, another storm was coming and this time they might not survive.
(Inspired by; https://flashfictionforaspiringwriters.wordpress.com/2018/11/26/fffaw-challenge-193rd/ with thanks).