Kao Island, adjacent to Tofua in the Ha’apai group, is home to a striking stratovolcano and the highest point in Tonga at 1,030 m (3,380 ft). Free for yachties, or a chartered boat trip to this remote island offers adventurous hikers the opportunity to ascend Tonga’s tallest peak. From the summit, visitors are rewarded with panoramic views of the vast Pacific Ocean and the neighbouring Tofua Island, making it an exhilarating experience for nature enthusiasts and trekkers.