Unfortunately I didn't get the chance, but they are practically next door and there are train stops at most of them. Those that you can't get to by train I'm sure you could hike to or pay a marshrutka to take you to. I'm definitely gonna go back to the Isthmus and try to visit some of them once I know where the specific spots are. Do you have any specific places in mind for that area? I'll try and get to them one of these free weekends for sure.