To Read the board on the tree.

To speak with fish.

To enter in the sea.
(To use gun to destroy seaweed.

To use ladder.

To found soporific flower.

To speak with fisherman and to give him soporific flower
To take fishing-net.

To found banana-tree and to use fishing-net to take banana.

To come back in the sea and to found banana's lift.

To insert banana in hole's lift. To switch on button.

To found wizard and to speak with her.
(To use sentence 2, 1 and 1)

End of episode 17. 