The cache can be reached from the beach or from land and is accessible from 8am to 6pm. It is located on Pantai Liang as known amongst the locals. It is located in a quiet and peaceful area. You would have to climb up about 30 meters if you come from the beach (hence the beautiful panoramic views). You can reach the cache also from the village of Bunaken or any of the other homestays and resorts over its half sand/half concrete jungle small roads. You can either walk or take/rent one of the motorbike taxi's.
Some of the staff looked quite excited about the geocache and are familiar with the game.
Please don't forget to take sufficient water when looking for the cache, things can get quite humid on the island.