Upper McKinney Falls Hike-in Access provides foot access to one of the park's two notable limestone waterfalls on Onion Creek, featuring a short easy-to-moderate hike with scenic views of the falls and surrounding creek landscape.

The access point connects to the Onion Creek trail system and requires no vehicle launch capability, making it suitable for hikers and foot traffic only.

Note that trails to the waterfalls can be steep and rocky with uneven terrain; the area is popular and can get crowded on weekends.