You Do Need power plug adapter while traveling from Bonaire to French Guiana.

Here is Why You Need An Adapter

The outlet and plug type used in French Guiana are C, D and E and in Bonaire are A and C. This is how they look like.

Bonaire

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

Type A

Type C

French Guiana

In French Guiana, outlets of type C, D and E are in use.

Type C

Type D

Type E