What is the best secret base spot on Pokemon emerald?

Answer 1

in my opinion the best secret base spot is the one in the far right hand corner of the desert near the mudslide

i think the best is around route 119 up a waterfall

If you want the biggest and the best, Go directly above rustboro city and use surf. Go all the way until you cannot go any higher then go to the right. There should be two paths, go to the one on the left. You will see a tree, use secret power, ad there you go.

Try the one on Route 120. It is the left indent on the wall north from the most southern log bridge. It is the largest.