Around Cam Ranh bay by motorbike: the peninsula loop
You cannot ride all the way round Cam Ranh bay, but the public roads that frame it make a long half day: Nguyen Tat Thanh down Bai Dai to the airport, round the head of the bay to Ba Ngoi, south past the salt and east to the Cam Lap promontory, then north on QL1A. The loop leg by leg, with sourced distances and where the navy says you stop.