Tradewinds Lemonade Tea

Mark and Jeff had been lost at sea for about a week. They had rented a nice little sailboat to go out and chill out in the tropics for a day, just enjoying the ocean. Things were going well, and then suddenly the winds kicked up and it was too much for our beginner sailors. If it wasn't enough for the wind to blow them off course, it decided to be a real jerk and also blow away their map. It really wouldn't do them any good anyways as each had assumed the other knew how to use a compass. The first few days they fought, but after that they kind of fell into a nice routine. Luckily they had fishing poles with them, so they would catch their food in the morning and then just lounge in the sun during the afternoon waiting for rescue.

It was during one of their afternoon sun bathing sessions that Jeff announced that he really had a hankering for a nice Arnold Palmer. Mark said he thought he say a box of tea under the deck. He had no idea why it was there, as there was no stove, but he never really questioned it. He just took some tea bags put them in a jar filled with water and let it sit in the sun for a few hours. Then he took the lemon that was inexplicably on the boat and squeezed it into his brew. The result was okay, but it was hardly an Arnold Palmer. It really tasted more like a lemon tea with more lemon than one would typically want. It didn't have the zing of lemonade. Jeff held back his complaints while he drank his mediocre beverage. He just sat back and sipped as the sun bronzing his skin.

What I would like to know his how our friends cooked their fish and where did all of this fresh water come from? I smell witchcraft!