I went to Iceland 2years ago with my phantom 3 pro -great place to fly a drone!Bring them both - no harm having parabolic range extenders in the bag. I am going to Iceland in July so I know that my flying will be on the conservative side. Will be in Iceland with just Spark not P3 or P4 even though we are going on a cruise. Did some flying (see youtube) in UK in May - same thing, I just rather keep in Vanilla. I must be getting wiser in my old age !