In Nice, I plan to take the tram to where I can catch the #100 bus to Monaco. Will the ticket I buy for the tram allow me to transfer to the #100, or will I need to pay a separate bus fare?
To the best of my memory, NO. Separate operation.
Separate ticket. Each one is about a euro. There is a regional card but if that is all you are doing it wouldn't be worth it.
The second is the TAM, the first is Lignes d'azur.
My wife and myself took the train from port st. Laurent , which is outside of nice to Monaco for under 15 euros return trip for both of us , the train was about a 25 minute ride along the coastline , right into the center of Monaco , very easy .
Thanks, guys!
Train is €7.60 round trip. I know bus is cheaper but I prefer the train - just a personal preference.