Bolt through

How much joy and fun brings carefree swimming in the warm ocean coast clean! But the horror covers people when they rolls terrible tsunami heights! You manage to escape from the clutches of death - you hid from the water coming into the long cave, but only briefly - began arriving water and you are left in a very unsafe situation. To your delight, you have the ability to change its gravity, when you want, and this ability will help you get out of this horror.