Above Seline lies the old town of Jabukovac, where according to legend a Croatian convert to Islam by the name of Jusuf, 800 years ago, offered a native girl a golden apple (most likely a tomato in today's language) and she took this apple and was wed to him.
Jusuf went on to battle and died, while the child his wife bore became the beginning of the family of Jusuf, which kept their Catholic faith, later Croatianised to Jusup.
Until 200 years ago all of Seline's inhabitants lived in Jabukovac, as it was far from the sea where pirates could not see the light from their fires and was therefore more secure.
Pisak is beautiful natural pebble beaches in Seline shore created by the water of the river running through the canyon of Mala Paklenica for centuries and carrying along its alluvium. At the most prominent point of the beach there is a lighthouse where the cache is hidden.
Exact coordinates of the geocache you can check here.