You Do Need power plug adapter while traveling from Papua New Guinea 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 Papua New Guinea is I. This is how they look like.

Papua New Guinea

In Papua New Guinea, outlets of type I are in use.

Type I

Canary Islands

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

Type C

Type E

Type F