Holon Volcano and Holon mountain deltas

found most of them still missing delta: venipede,hoothoot and elekid. where to find them?

Venipede, in Holon volcano go right. You need relic song.

Elekid, in mountainous cave, go to the blocked cave exit. The wall to the left has a hidden switch.

Hoothoot, use relic song on the Holon mountain exterior.

thanks again, ill go look there now