Sim's Park is an unusual park-cum-botanical garden in Coonoor which was developed around the natural contours of the land more than a hundred years ago. Ethnic trees, shrubs and creepers co-habit with many unusual species of foliage brought in from various parts of the world.  Rudraksha – the bead tree and Queensland karri pine, a handsome ornamental tree are among the many attractions in this park. Sim’s Park and the Botanical Garden together form the largest repository of temperate plants in India and an important destination for Botanists.  Sim’s Park is the venue for the Annual Vegetable and Fruit Show organized by the local horticulture department.

Sim's Park, Coonoor, came into existence due to the pioneer efforts of the early European settlers. It was inaugurated in December 1874 due to the efforts of Mr. J.D. Sim, Secretary to the Government and Major Murray- acting Superintendent of the Nilgiri forests. Though this was started as a pleasure resort for the residents and visitors, the park has now developed into a Botanical Garden for the purposes of introduction and trial of various exotic species of systematic and economic importance.

The park is situated in a deep ravine on the northern side of Coonoor railway station at an elevation of 1768 to 1798 metres above sea level. It extends over an area of 12 hectares of undulating land and possesses a number of natural advantages. It adjoins the Pomological Station, Pasteur Institute and Silk Worm Seed Station. At the head of the gardens, the well kept lawns, the artistically laid out ornamental beds, looking beautiful and lacking no wealth of the flowering plants or shrub in great variety and colour, are a feast for the eyes.