u can usually ask about a taxi at your hotel and then will find one for u.
I for one loved the boat trip as u can hang out outside/walk around/sleep. Took about 6 hours. True part of it is boring, ( the middle) but i would go by boat nayday over bus. I hate buses

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A good Traveler is one who does not know where he is going to,
and a perfect Traveler does not know where he came from.