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

Here is Why You Need An Adapter

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

Kuwait

In Kuwait, outlets of type G are in use.

Type G

Canary Islands

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

Type C

Type E

Type F