Dingo_Dile

Best answer as chosen by Asker / Ratings
Your default weapon, the Bomb Glove, is all that's needed. Some people do claim you need the Visibomb Gun, but that's not the case. You can generally tell "bomb away walls" because, when you look closely, they seem to have gaps in the rock. It's as simple as equipping your Bomb Glove (it should be available on your QuickSelect wheel, which you can access by pressing the triangle button. If not, just pause, go into weapons and it should the Bomb Icon) and just throwing a bomb at said wall in question. Then, go fetch that Gold Bolt!