If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
You have to sail around the harbor without bumping into any of the boats already anchored there,and dock it at the location indicated with in 60 seconds. The second stage is also similar to the first stage. In the third stage you get a hostile canoe traveling rapidly, touching this canoe would bring the game to an end.
Use Arrow Keys to interact.