Юля, посмотрела я на Тиматике (ссылка в первых постах):

National RUSSIAN FEDERATION (RU)
Embarkation RUSSIAN FEDERATION (RU)
Destination TANZANIA (UNITED REPUBLIC OF) (TZ)

TANZANIA (UNITED REPUBLIC OF)

Passport (must be valid at least 6 months at time of arrival) required.

Visa required, which can be obtained on arrival. Fee USD 50.-.

Visitor must hold:
- onward/return tickets and all documents required for next destination; and
- deposit up to TZS 5,000.- (generally exempted if holding onward/return ticket and sufficient funds).

Non-compliance with entry regulations will result in deportation of the passenger on the same flight.

Век живи, век учись - не думала, что консульство может скрывать информацию от туристов