Start your trip to Hon Khoai by taking a ferry from the mainland to the island. Once you arrive, head to the Hon Khoai lighthouse, which offers stunning panoramic views of the surrounding area. Take a leisurely walk along the coastline and enjoy the pristine beaches and crystal-clear waters. In the afternoon, visit the Hon Khoai historical site, where you can learn about the island's rich history and cultural heritage. End your day by watching the beautiful sunset from one of the island's scenic viewpoints.