1. Tuolumne Grove is a grove of giant sequoia trees located in Yosemite National Park in California, USA. The grove contains about 25 mature giant sequoias, some of which are over 3,000 years old and over 200 feet tall. The most famous tree in the grove is the \"Dead Giant\", which is one of the largest downed sequoias in Yosemite. Visitors can walk through the grove on a 2.5-mile trail that winds through the trees, and learn about the history and ecology of the giant sequoias.

2. Tuolumne Grove is open year-round, but the best time to visit is from May through October. The grove is located about 16 miles from Yosemite Valley on Tioga Road. The parking lot is typically open from 8 am to 7 pm during the busy season, but may close earlier in the fall and winter. There is no phone number available for the grove.

3. Entrance to Yosemite National Park costs $35 per vehicle, $30 per motorcycle, and $20 per person for those entering on foot or bicycle. These fees are valid for seven days and permit entry to all areas of the park, including the Tuolumne Grove. The grove is accessible by car, but visitors should be aware that the parking lot is small and often fills up quickly during peak season. Additional transportation options include the free Yosemite shuttle, which stops at Tuolumne Meadows and other popular locations in the park.