All of the major companies are at the Kona airport. You may also rent a car for day trips at the Mauna Lani Hotel . The tropical sun can quickly burn. Use sun screen and bring a hat. Nothing will spoil a vacation more quickly than a bad case of pink belly on the first day.
Cotton is king short sleeve shirts, shorts and sandals are appropriate dress for most activities.
You would be more comfortable in trousers, dress and shoes for the Canoe House Restaurant at the Mauna Lani and other nicer restaurants. Coats with ties are rarely seen. For hiking in the Petroglyph Park, Hawaii Volcanoes Park, or over the other lava fields, good tennis or hiking shoes are necessary. If you come for only the four nights and want to include some of the activities listed below, you might want to book them prior to your arrival to insure space. This is only a partial list of the many offerings on the Big Island.