Can we sleep outside on the top deck of the boat?

Halong cruise is always best tour of Vietnam, you have a lot of time to rest, read book, chat with friends, drink, watch the stars, moon..., Sundeck is the great place. It is very nice to sleep outside there on the sun-deck but please check this with our tour guide or the junk’s captain if the weather is fine to sleep outside. To note that we have very fine cabins designed with comforts of everything needed for a good sleep: natural rubber mattress, blanket, feather pillows and mosquito net and we can not bring this outside for you.