I don&;t know how many days your trip is, so it&;s not good to suggest. But there is nothing to play in Wujiang District and Zhenjiang District. Danxia Mountain, Grand Canyon and yunmen temple are a little far away. It is suggested that you take a bus directly to Danxia Mountain after Shaoguan Railway Station, and you can stay at the BB there for one night.
Renhua doesn&;t have a direct bus to Ruyuan, so you have to go back to the city and transfer.
Yunmen temple and Yunmen Mountain are close and can play together, but Yunmen Mountain is far from the Grand Canyon.