There is a children's playground and outdoor fitness equipment, as well as the park, duck pond with a fountain and walking paths.
The history of Melluži park and stage began in 1827, when Baron Karl von Fircks, the owner of the lands of Majori, Melluži and Asari, built a Resort Hall where dance nights and theatre performances took place. In 1880s a park with a small pavilion and a moderate-sized wooden stage was laid out here and open-air concerts were held on the stage.During World War I the spa house burned down, but in 1922 concerts in Melluži park were held once again only symphonic music was played here now. In 1938 a new stage and the Milk Pavilion were built as a part of improvements made in Melluži park. Lively concert life continued here until 1940. After the war in 1960s the stage was renovated.
Melluži Open-Air Stage is a local monument of architecture being one of the two wooden stages from the first half of the 20th century still standing in the Baltic states (the second stage is located in Kuressaare, Estonia). In 2019 under the European Regional Development Fund co-financed project “Development of new services of natural and cultural tourism on the West coast of the Riga Gulf” renovation works have been performed on Melluži stage complex.
In 2021 a new environmental art object in Melluži Park was created by sculptor Olga Šilova. The name of the sculpture is a reference to the Latvian folksongs and literally means ‘’Standing, Singing on a High Hill”. The concept of the work is based on several thematic layers - folklore, the character of the nation and an old known desire to express oneself in a song. The figure of a singing woman is made of light metal with a slightly shiny surface that visually resembles silver. The base of the sculpture is made of granite.