Travelling to Tuvalu, you need valid passport.
We wish to recommend you to check, before you leave, at Tuvalu Embassy abroad, if the conditions for the entry and stay in the country did not changed in the meantime.
Travelling to Tuvalu, you need enrtry visa, which is granted in a moment of arrival to the country. The visa is valid for three months. To get it, you need valid passport, return air-ticket and sufficient financial means for the stay in the country. The visa could be prolonged.
Information and warnings on travelling abroad is to be found HERE.