The Uetliberg is Zurich’s own little mountain, marking the end of the Albis mountain chain on the western side of Lake Zurich. It rises up to 869 metres a.s.l. - towering around 450 metres over the city. There is a lookout tower on top(admission 2Sfr) bringing you to exactly 900 metres a.s.l. and offering a stunning view over the city, the lake and on to the Alps. The mountain is a popular local recreation area all year round. There is a train (S10 from track 21 or 22) from the main station twice an hour (more on weekends). Be aware that you need an additional ticket even if you have a day pass for Zurich, because the Uetliberg is not within the city zone 110 (buy a 1 - 2 additional zones’ day ticket at the ticket machine). From the terminal station it’s an easy 10-minute walk to the peak with the lookout tower (admission 5Sfr) and a restaurant. You can also walk up from the city to the peak. Take tram N°13 in direction Albisgüetli and get off at the last stop. From there two different paths lead to the top, both take about an hour. To follow the Denzlerweg, walk at first towards the restaurant Kolbenhof (follow the signs). After that, the path goes into the forest and rises steeply with lots of wooden stairs - at the end there is even a ladder and a chain to help you climb the final rock. A bit easier but also steep is the Laternenpfad leading straight into the forest after the final stop - it’s illuminated at night. An easier way is to take the train and get off one stop before the top at Ringlikon, from where a gently climbing path leads you in roughly 40 minutes to the lookout point on the Uetliberg. You do not need hiking equipment, but we recommend good shoes and staying on the path, especially in winter. There is a sledge run from the peak down to triemli - it's sometimes possible to rent a sledge at the terminus.
I took the train here and was impressed by the view (even if you don''t climb up the observation tower). It''s also a good place to relax with a beer and a bratwurst with a view.
This is a great overview of Uetliberg! I really enjoyed my time there last weekend, and even did the Planetary Trail hike to Felsenegg. If you are looking for more details about getting to and from Uetliberg, and what you can do there, check out this blog. There are also some awesome photos!http://lifehungry.com/2015/11/02/uetliberg-must-see-views-from-the-top-of-zurich/