You start the game on level one, which appears to consist solely of two islands in the water. However, if you jet ski, fly, or ride an inner tube to the lower left part of level 1, you will find another island with some presents and a hole in it. Fall down the hole to level 0, where you can be healed (in the hot tub) and receive an extra life (by drinking lemonade). When you leave level 0, you will return to the highest level you've visited.