Jump in the water

You have on:

-Underwear

You decide the island is your best bet at making it to the end of this crazy game with your last article of clothing intact. As long as you stay low, the girls won't be able to spot you from the shore.

You jump into the lake and start swimming towards the island. You swim slowly and try to make as little noise as possible, lest you attract any attention to yourself.

Upon arriving at the island, you climb up onto the rocky shore and observe your surroundings. Confident in your new found hiding place, now you just need to settle in, get comfortable, and wait.