1. The park has a pleasant environment, high green coverage and fresh air, which is beneficial to physical and mental health.

There are various facilities and activities in the park, such as amusement facilities, fitness equipment, cultural performances and exhibitions, which meet people's various needs and interests.

Park is a social place, where people can get together with friends and family, enhance interpersonal relationships and enjoy social fun.

4. The natural landscape and artificial landscape in the park complement each other, bringing people visual enjoyment and sensory stimulation.

In summer, people like to enjoy the cool under the shady trees in the park for the following reasons:

1. The temperature under the green forest tree is relatively low, because the leaves can block the sun and reduce the heat absorption on the ground, making the green forest tree a good place to go in summer.

2. Green trees can provide shelter from the sun and rain, providing a comfortable place for people to rest and play.

3. The scenery under the green trees is often more beautiful, and more natural ecological scenes can be seen, which brings people visual enjoyment and pleasant mood.

To sum up, people like to play in parks, especially under green trees in summer, because parks can provide pleasant environment, rich facilities and activities, social opportunities and beautiful natural scenery, while green trees can provide shelter, shade and beautiful scenery in summer.