Air kaca is the shore cave in where General Mac Arthur occassionally dropped by and took shower. This place comprises of a concave of water pool with the coral caves around, its depth around 5 m underground before you can take a shower inside. Its cave is presumably connected to the sea – provided that the security of this site confessed that he saw some glass fishes comes out the cave in several occassions.

You can access the site by rent a bentor (Becak Motor – traditional vehicle in Morotai), you can rent 50,000 IDR for an hour in Air Kaca.