Adventure Jack: Escape from Jungle Island

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Jack is an adventurer. He was flying over the sea with his small aircraft. While he was above a jungle island, his aircraft's engine indicates failure and he lost the control of the aircraft. He escaped before it crashes and safely landed in the island. Now he has to escape from the island and only possible way is to find a boat. He know there is an old boat house in the island, but he do not know how to reach there.