You Do Need power plug adapter while traveling from Balearic Islands to Bolivia.

Here is Why You Need An Adapter

The outlet and plug type used in Bolivia are A and C and in Balearic Islands are C and F. This is how they look like.

Balearic Islands

In Balearic Islands, outlets of type C and F are in use.

Type C

Type F

Bolivia

In Bolivia, outlets of type A and C are in use.

Type A

Type C