Itinerary

My plane tickets have been bought and I'm due to leave May 19th, returning in mid-August. Here is my basic itinerary:

Hawaii- Oahu and Big Island (2 weeks)
Australia- Adelaide, Darwin, remote parts of the Northern Territory, and possibly the Great Barrier Reef (3 weeks)
The Maldives- Male and the western face of the Male Reef (1.5 weeks)
South Africa- Cape Town and along the Southeastern Coast of South Africa (2 weeks)
United Kingdom- Plymouth, the Jurassic Coast, and possibly Edinburgh (3 weeks)
Iceland- Reykjavik and Skaftafell (1.5 weeks)

I have chosen each of these regions due to their locations within an ocean current system that facilitates the transport of marine debris around the globe, inundating the coasts with trash.