How can you get off a powerboat when you're trapped?
When one is grounded aboard a small powerboat the best method to help free you depends on the situation. If you can hop on land then you could push the boat away from the ground and attempt to free yourself. Otherwise if you have a pole of some sort you could try to push yourself free from the boat. Another method would be to just try to wiggle the boat free by reversing the boat and turning the wheel.