Coconut Shark?

The story behind the Coconut Shark

While on vacation some years ago I decided to take a swim, not an ordinary swim, but a swim from a sandy beach with palm trees where I decided to spend my relaxing afternoon, to a distant cove around the coastal headland. 

The water was crystal clear, warm and inviting; my sports stop watch set to zero to see how long it would take, my diving mask, snorkel and flippers were on and I set off....45 minutes later l arrived ......the first half of the long swim successfully completed. 

After a well deserved five minute rest I set back on my return swim. Two thirds of the way into it, and becoming increasingly fatigued.....a large dark image flashed by beneath me, l turned, and turned again, my breathing becoming frantic, I turned again, water filled my mask from my erratic movement, my eyes were stinging from the salt, l could hear the theme music of Jaws playing in my head, my breathing became more panicked and my heart pounded...and then .......to be continued....