Coastal world tour entirely traversing the planets coastlines clockwise starting in NZ.
The course will traverse the navigatable coastline of every continent as close as reasonably possible, making trans-oceanic trips only when necessary.
All plans are set as low altitude airways with ILS where available.
The only restriction on stage length is how long I can be bothered flying on the day I make that particular plan :-)

Stage 16 is Hurgada to Port Sudan
Stage 17 is Port Sudan to Djibouti
Stage 18 is Djibouti to Mombasa
Stage 19 is Mombasa to Madagascar
Stage 20 is Madagascar to Durban