You can go to Yantian near Shenzhen Railway Station. Cars need an appointment to pass. You can go to the end of the school yard in Dapeng Peninsula and the West Chung in Tung Chung. There are more homestays and meals at the end of the field. It&;s more convenient to take the elderly and the beach.
You can go to Shenzhen Bay Park and Mangrove Park near the park. You can I don&;t go to the seaside, but it&;s beautiful there. ; Walking along the coastline is comfortable. Especially at night, the subway can reach you directly.