Aman sari is located in the town of Bandar penawar. Normal/boring town. It's 5 mins drive to Desaru beach hotels (Lotus, hard rock, etc.).

If you like to eat lobster/seafood, can drive further down south to sungai rengit (~30 mins) (right next to rapid pengerang Petronas refinery.) There are pork-free restaurants such as Jade garden, super lobster. Beside jetty Tanjung Pengelih, there's a floating Malay restaurant.
Very small town but full of rapid workers.

There's not much activities to do in these areas.
Also, Desaru is about 1hour's drive from JB.