You Do Need power plug adapter while traveling from Canary Islands to Guyana.

Here is Why You Need An Adapter

The outlet and plug type used in Guyana are A, B, D and G and in Canary Islands are C, E and F. This is how they look like.

Canary Islands

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

Type C

Type E

Type F

Guyana

In Guyana, outlets of type A, B, D and G are in use.

Type A

Type B

Type D

Type G