It begins at the quarry at the entrance of the Penang Botanic Gardens and it takes a two- or three-hour leisurely hike to reach the top. Some of the more famous pit stops at the mountain are 52 and 84. At these pit stops, a view of the island is visible to hikers, who are able to get some water and tea prepared by locals stationed on the hill. Eighty Four is the last pit stop before the top of Penang Hill—approximately forty-five more minutes from 84. Jalan Sultan Yahya Petra, more commonly known as Summit Road, leads from the top station to the western part of the hill right towards Western Hill and Tiger Hill. The eastern face of Penang Hill is well served by a series of roads and paths, for example, Moniot Road, Viaduct Road, and Tunnel Road. Moniot Road is named after a Frenchman, Michael Jules Moniot who surveyed it between 1846 and 1855. Moniot Road has been declared a Heritage Trail in 1995 by the Governor of Penang. A system of bridle paths forms a picturesque labyrinth of walks connecting the different bungalows. Indian penal servitude prisoners shipped from Bencoolen, Sumatra to Penang during the second half of the 19th century built these by-paths. Numerous trekking trails lead from various starting points in the lowlands to Penang Hill. The more popular trails include the Moongate Trail, trail from Air Itam Dam to Tiger Hill, trail from Hye Keat Estate and trail from the Municipal Park (formerly Youth Park). Some of the trails are used by farmers to transport produce to the markets of Balik Pulau and Air Itam. Climate The most important feature of Penang Hill is the cooler climate. The core summit area has an average temperature ranging from 20° to 27 °C. The mean minimum temperature is consistently below 21 °C. The hottest months are between December and April while the coolest months are between June and October. It is generally 5 degrees cooler than Georgetown. Plant and animal life Flora The most common forest type found on Penang Hill is the hill dipterocarp forest. Growing at higher altitudes are some of the submontane oak-laurel as well as coniferous trees. The tree fern which is normally associated with higher elevations is also found growing here. Penang Hill is scientifically important as a type site of many Malaysian plant species. In the past, botanists