The park offers rare open public space, trees and playgrounds in the Thai capital and contains an artificial lake where visitors can rent boats.

Paths around the park totalling approximately 2.5 km in length are a popular area for morning and evening joggers.

It was named after Lumbini, the birthplace of the Buddha in Nepal for the prosperity, although its location at that time was considered the outskirts of the city.

At the entrance in front of the park, the royal monument of the king was built for his memorial, inside the park, there are a clock tower of Chinese styled structure built in 1925, a public library which was the first one in the country, a public aquarium, children's play ground, sporting ground, and large swimming pool.

In 2006 the People's Alliance for Democracy (PAD) protested in the park against Prime Minister Thaksin Shinawatra.

In 2013-2014 the park became one of the main protest sites of the People's Democratic Reform Committee (PDRC) against Prime Minister Yingluck Shinawatra.