There are small shops in Zhongjiao and Qiziwan in Changhua Town, selling some simple diets such as biscuits, eight-treasure porridge and mineral water. When hunger and thirst are unbearable, the fruit of cactus is excellent. Pull out a long thorn from cactus, stand in the limelight, scrape off the velvet thorn on the peel with the long thorn (it is difficult to pull out the velvet thorn if it sticks to the skin), and then use the long thorn to open the peel and open the skin cover to enjoy the delicious food. The pulp of wild pineapple can be eaten in a small amount, but it doesn't solve many problems.