I play on Xbox, I'm post epilogue, no mods, no cheats, no horse OR donkey, Guarma is restricted, and there's an invisible sniper. If you're in a similar situation, this is the best way to get back to the mainland! I've got info here that I've yet to see anywhere else.
Wanna go to Guarma and don't know how? This is the video I watched to get me there! Go give them some love! • RDR2 | Guarma, The Fastest Way There!...