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

Here is Why You Need An Adapter

The outlet and plug type used in Saba are A and B and in Bolivia are A and C. This is how they look like.

Bolivia

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

Type A

Type C

Saba

In Saba, outlets of type A and B are in use.

Type A

Type B