Simpson Park is a 20-acre access point owned by Upper Allen Township located at 2701 South Market Street (Route 114) in Bowmansdale, offering creek access for boating and fishing with parking and composting toilets.

The park features a nature trail, sand volleyball, picnic tables, grills, and pavilions, making it a convenient mid-trip access point on the Yellow Breeches Creek Water Trail (Trip B, approximately 1. 1 miles from Messiah College).