The cave Ana Te Pora is located in Tahai and is about 700m away from the Ana Kakenga Cave. Here you will probably have more the feeling “it’s just a cave”. There is a kind of stone bed in ti, but like always fast on Easter Island, there is no clear information about it. Maybe it was an altar, maybe something else. Otherwise there is nothing special in this cave.
It would not worth it to just go the way for that cave only, but if you go to Ana Kakenga, you can think about whether you go the few meters more. If you take the whole trail you will come along the Ana Te Pora anyway, then you should definitly do a short stop here.