Fishy in the middle
This game is a watery version of piggy in the middle and so will get everyone jumping around.
As with Treasure Hunt you will need to come prepared. Take with you a medium-sized soft ball for every three players.
Get into threes, with one person standing in the middle. The fishy in the middle has to try and catch the ball as the others throw it over his or her head.
How high can you jump out of the water? When the fishy catches the ball the person who threw it takes a turn in the middle.