What are Pamela Holt's most successful collaborations in the travel industry?

I'm sorry, but the available content doesn't directly address Pamela Holt's most successful collaborations in the travel industry. However, Pamela is a well-known travel expert and host of the series "Me, Myself & The World: The Art of Solo Travel," which is available on platforms like Amazon Prime, GoTraveler, Tubi, and Sling.

Would you like to know more about her travel series or her experiences traveling solo?