You may need an embassy visa for Namibia if you have a United States passport
Visa options for Namibia (2)
Electronic visa on arrival for a maximum of 90 days for Tourism from 1 April 2025
Starting April 1, 2025, travelers need a visa to visit Namibia for tourism. Travelers can apply online in advance or obtain a visa on arrival at Namibia’s Hosea Kutako International Airport (WDH), Walvis Bay International Airport (WVB), Walvis Bay Harbour, or any of the following border posts: Trans-Kalahari, Impalila Island, Katima Mulilo, Oshikango, Mohembo, Ariamsvlei, Orangemund, Noordoewer, or Ngoma. Please see the source for further details.
This is not offered by sherpa°.
Apply on the government site.
You don't need a visa. You can travel to your destination for a limited stay. Be sure to check other entry requirements and how long you can stay for.