DC Parks Summer Programs in June Provided photo GREENVILLE — Over the next several weeks during the summer, Darke County Park District will be offering a variety of fun and informative programs. Cycling and Coffee — Join us for a bike ride (14 mi round trip) to Bear’s Mill for some coffee and pastries. Saturday, June 12, at 9 a.m., meet at Bish Discovery Center, 404 N. Ohio Street, in Greenville. Geocaching 101 —Join a naturalist to discover the fun of Geocaching! Learn how to use your smart phone (or handheld GPS) to go on a treasure hunt just about anywhere in the world! Saturday, June 12, at 2 p.m., Bish Discovery Center, 404 N. Ohio Street, in Greenville.