The town of Cilacap is also a sea port on the southern coast of the island of Java. The port is one of only a few that exist on the southern coast that can service shipping of reasonable tonnage. The nearest safe anchorage east is Pacitan. The city's harbor is protected by Nusakambangan, an island best known as the site of several high-security correctional facilities although there are also hopes that the island can be developed as a tourist hub. Nusakambangan sheltered Cilacap from the worst of the 2004 tsunami. Nevertheless, the disaster took 147 lives, devastated beaches, damaged 435 fishing boats and inflicted material losses amounting to about Rp 86 billion (around $9 million).