With their voyage complete -- and once the space station's hatches open for them, scheduled for soon after midnight -- they'll have plenty of time to get comfy: They are scheduled to remain on the orbiter for about six months before heading home.

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On the current voyage the Adonia had to spend an extra day in Barbados to await delayed supplies and it missed one scheduled call in Brazil because of a local police strike which might have made it risky for passengers to go ashore.

CNN: Argentina cruise ships caught in diplomatic storm