Bring your kids or little brothers or nieces along if driving. They will enjoy watching the ostricts at the Ostrict Farm, tasting fruits at the orchard farm or playing on the many beaches along the east coast.
Cycling is quite enjoyable as the traffic from the jetty to Sg Ringgit is light and the road is along the sea. Of course you need to pay boatfare for your bicycles. Also there is a night market just besides the beach on alternate Fridays. If you continue riding along the estate road, you will get to reach Desaru, also called Tg Penawar.
Just google Pengerang and you will get to read many interesting travel tales.