We sailed from Goldsmith Island to Middle Percy Island. Andrew had worked out approximately how long it would take with the 15 knot easterly predicted for Sunday turning south easterly by Monday. Then working backward from arriving at Percy mid morning Monday meant we set off at lunch time Sunday. What we didn’t take into consideration was that Mackay (halfway point) had 8m tides which creates strong currents, which of course were against us. So we set off at lunch time with an easterly and a boat speed of 7.5 knots which slowly went down to 3.50 knots. Then the easterly turned south easterly ahead of time, which meant a lot more tacking than anticipated. With the wind turning south east the swell also increased. By Monday morning Percy was a faint image on the horizon. So it was 9pm by the time we dropped anchor at Percy Island.