How old are your children? If they are not very strong, it is not recommended to hire bicycle other than 大埔 if you planned to go to 大尾篤。
You may simply hire the bicycles at 大埔墟﹐e.g. 東昌街﹐平過在大埔港鐵站附近租。你可要求在大尾篤還車﹐然後﹐搭巴士出大埔中心 shopping and dinner. 租車通常只到 6:00pm.
'大尾篤燒烤x' is nice. There is a beach outside and you may try 摸蜆如果咁啱潮退。宜家好似有$90任燒優惠。