U.S. entrants into Botswana must carry a passport with at least six months of validity remaining. They are permitted to stay up to 90 days without a visa as long as its within a 12 month period.
U.S. citizens entering Equatorial Guinea require a passport. They must also have evidence of a yellow fever vaccination, such as a yellow fever certificate or an international vaccination card. The country requires visas for U.S. citizens intending an "extended stay," according to the U.S. State Department, or for work in Equatorial Guinea, and those staying longer than 90 days must also register with the police.
For U.S. citizens, no visa is required for visits of 180 days or less. However, evidence of a yellow fever vaccination is required.
In addition to a U.S. passport, citizens entering Malawi must carry a return ticket and "adequate funds" to gain entry, according to the U.S. State Department. A visa is not necessary, but a visitor's permit, available at airports or border crossings, is required. With a visitor's permit U.S. citizens can stay in Malawi for up to 30 days and it can be extended. For visits of longer than 90 days, a visa is required prior to entry.
U.S. citizens can visit Morocco without a visa for fewer than 90 days. A passport is required. The U.S. State Department's website carries a special warning to children of Moroccan fathers: "Even if the children bear U.S. passports, immigration officials may require proof that the father has approved their departure before the children will be allowed to leave Morocco."
For a stay of less than 90 days, U.S. tourists can enter Rwanda with a passport and evidence of yellow fever vaccination. U.S. citizens entering Rwanda for matters besides tourism need to obtain a visa.
Like Rwanda, only a passport and yellow fever vaccination is required to enter Senegal for a stay of under 90 days. The U.S. State Department also recommends a meningitis vaccination, "if the traveler is arriving from or has recently traveled to an endemic area."
U.S. travelers visiting South Africa need only their passport for a stay up to 90 days. The passport must have two blank pages for the South African temporary residence permit and border stamps. Business travelers, students, academics and volunteers should check with the South African Embassy or Consulate before traveling, as a visa may be required. Proof of the yellow fever vaccine is required if arriving from a yellow fever country as defined by the Centers for Disease Control and Prevention.
For U.S. citizens entering Swaziland, a visit of less than 60 days does not require a visa. A passport is required and visitors entering through South Africa should be prepared to meet South African requirements for entry.
To visit Tunisia, bring a passport. U.S. citizens do not need a visa if they are staying less than four months.
