Millions of years of erosion of the sandstone have created a coastline of steep cliffs, rocky headlands and stretches of white, sandy bays. Wave erosion at the base of the cliffs has carved many of the rocky headlands into fantastically shaped sea arches and seastacks with colored patterns formed by iron deposition. The most famous of them is shaped like a cobra’s head which can be spotted on a boat ride from the headquarters or one of the beaches. Some of these rock formations can be seen on entry to the Teluk Assam Beach, which fronts the park.
There will be an additional boat fee if you wish to visit the Sea Stack or Bako’s remoter beaches.