Cheltenham beach on Waitangi Day (our national holiday celebrating the signing of our founding document the Treaty of Waitangi), swarming with swimmers, paddlers on boogy boards, skis, paddle boards, sailors in yachts of all sizes (including Torro Rosso, Italy's 72 foot wing-sailed catamaran that is contesting the Americas Cup this year in San Francisco). I had just started sketching the scene when this cruise liner er, cruised, into view and made it's way past Rangitoto island.