Table 1: Sailing times between each location.

P1 P2 P3 P4 P5 P6 P7 P8 M1 M2 B1 B2 P1 0 18 14 20 32 34 35 30 19 29 15 32 P2 18 0 23 15 31 33 27 35 21 33 12 35 P3 14 23 0 12 39 34 30 32 15 38 16 31 P4 20 15 12 0 35 38 31 39 12 31 18 34 P5 32 31 39 35 0 18 12 19 31 12 29 11 P6 34 33 34 38 18 0 13 15 34 11 36 15 P7 35 27 30 31 12 13 0 12 29 18 25 19 P8 30 35 32 39 19 15 12 0 33 15 39 12 M1 19 21 15 12 31 34 29 33 0 30 15 25 M2 29 33 38 31 12 11 18 15 30 0 28 16 B1 15 12 16 18 29 36 25 39 15 28 0 26 B2 32 35 31 34 11 15 19 12 25 16 26 0