When Danny is on the beach just before he goes swimming, he is wearing green shorts, but as he runs into the water, he is wearing navy-blue shorts with a brighter triangle at the back (and appears rather more tanned, muscle is more toned, hair is a darker color).
The first female ethnic dancers shown are Tahitian, with the traditional hip shaking. Female Hawaiian dancers use more fluid subtle hip and arm movement to tell a story.
A sign in front of the police department says "Hawaii Metro Police". Hawai'i is a state, not a metropolitan area. It should have at least said "Honolulu Metro Police".
No one would put an electronic listening device in a live plant that would get watered periodically.