Update position at 18:00. We went 151NM from anchorage at noon yesterday to noon today. We accessed our arrrival time and decided we would arrive after dark on Saturday if we continued at the spped we were going. Therefore we dropped the mainsail completely and poled out the jib and still making 5-6 knots. The slower speed will make our arrival during the morning on Sunday. The guides recommend a daytime arrival to avoid the reefs surrounding the island.