Here is how Yuna and her friends returned home in Werewolf vs Werecat Part 2.
The next morning, Everyone was preparing to leave as the S.S. Full Moon arrived.
Lawrence Talbot: Well, I hope you and your friends and family have a safe journey home.
Princess Yuna: Thank you, Mr. Talbot. For everything.
Moon Starlight: Come on, Yuna!
Nyx: The S.S. Full Moon is ready.
Twilight Sparkle: Goodbye!
Princess Yuna: See you real soon!
Lawrence Talbot: (waves with one hand) Until we meet again, Princess Yuna.
So, They set sail back home to Equestria.