Keene Valley is a lovely town located in the High Peaks region of the Adirondacks, south of Lake Placid and is the starting point of many of this area's most scenic trails, not only to the High Peaks but also to lesser know locations that offer amazing views like Hopkins Mountain. This makes Keene Valley a very popular destination for hikers and also for climbers. Two trail heads in particular are very busy and get fill up very quickly: The Gardens and Lake Road. The Gardens parking area provides a shuttle to an overflow parking located at Marcy Field.
This report covers many treks done over several years. My favorite one is the Scenic trail that goes up to Sawteeth from the dam at Lower Ausable Lake. I did this trail twice, once in the fall and once in winter. That winter hike turned out to be the most difficult hike I have ever done; I had to open up the trail as no one else had gone through it. It is also very steep in sections. It does live up to its name however and offers amazing views of the surroundings.
Most of the High Peaks on the Great Range are accessible as day hikes from the Lake Road or the Gardens trail heads. Opposite route 9 which goes through Keene Valley, Rocky Peak and Giant Mountain (actually called Giant of the Valley) can be reached. Other interesting locations are Noonmark mountain and Hopkins mountain. Noonmark is so called because from the town of Keene Valley, the sun is directly over the summit of that mountain, marking the noon hour.