Fig. 1: Time series of 5-year average durations of crossings between the Cape of Good Hope and Madras, India (heavy lines), augmented and reduced by one standard deviation (thin lines). PO (full lines) = outward crossings, SH (broken lines) = homeward crossings.[1]

[1] Together these labels suggest that 'posh' travelers should avoid the sun in Portside cabins on Outward journeys and in Starboard cabins on Homeward journeys.