Hong Kong's prehistoric rock carvings have managed to survive thousands of years. But with renewed public interest in taking a look, not to mention picnicking in the vicinity, and with increased pollution, these rocks could be facing new problems. Gove...
Hong Kong's prehistoric rock carvings have managed to survive thousands of years. But with renewed public interest in taking a look, not to mention picnicking in the vicinity, and with increased pollution, these rocks could be facing new problems. Gove...