Talk:HM Items/@comment-82.148.165.190-20140320095253/@comment-24666321-20140413191847

no those places are entrances to your secret base (secret power).

it's not realy obvious where you can use tesseract, i haven't even found all of them myself yet, but most places have some "markers" like the lines at Mt. nova for getting the heatran and the "useless" mini island in caspian city. Or obvious past related places like the stone where you house used to be in your home town. Try the legendary pokemon page on this wiki it should help you along a lot.

the "small hole indented" in the walls are for wormhole, so no use trying tesseract on those things.

i hope this helped anwser your question, if you need some more help/anwsers or if this wasn't clear to you, you could use my wall and i'll see if i can help (since i don't know everything either).