Times are approximate because someone always arrives late.
However in the last seven years their services have never been required by us. Most diving occurs on the southern most tip of the lee of the island. Usually 15-20 minutes from the dive shop though we do day trips to the northern islands as the diving is spectacular even though it takes an hour to get there. We have run off during the rainy season, but then it also rains in the dry season. We also get impressive algae blooms that can extend down 15 ft or more.