The 58-hectare (143 acre) Rizal Park is named for Dr Jose Rizal, renowned Philippine anti-colonialist, writer and philosopher. The park is one of the largest in South East Asia, and is a green lung much used by the residents of Manila for recreation and entertainment. The park features numerous ornamental gardens, a chess plaza and a skating rink. In a pond on the east side of the park the Philippines archipelago has been recreated in miniature. There are also some museums and public buildings within the park, and after sunset a sound and light exhibit featuring the martyrdom of Dr Jose Rizal is to be seen. On Sundays there is a free concert in an open-air auditorium.