From the ticket office here, you're transferred to an electric cart for a 20-minute ride to what resembles a deep meteor crater. Follow the path to one of three viewing platforms at the top for cloud-level views of karst ranges.
Every 20 to 30 minutes, between 8am and 4.30pm, a bus leaves Lèyè for Dàshíwēi Sinkhole. Catch it at a large temporary car park diagonally opposite the People's Hospital (人民医院; Rénmín Yīyuàn). The car park is accessible via a small alley. The 30-minute ride costs ¥4.30.