The Sailing Club Access from Lewis Center Road views the reservoir from the end of the old Lewis Center Road past the gate to the Sailing Club. The area includes a very interesting inlet along the shore of the inlet opposite the Sailing Club. You can view the inlet from the west end of the access road, the sailing club, and a picnic area just to the north of the sailing club.

Look for the turnoff just where Lewis Center Road turns west (as you drive north from the beach entrance), and take the right turn immediately after the turn-off. This old road formerly ran across Alum Creek, but now dead-ends at the lakeshore. The fields and a marsh on the way can be productive for field and wetland birds, and the view from the end of the road is quite good. Often, a flock of diving ducks accumulates here in the fall and spring months. This is a good spot to try if the beach is gated shut (late fall or winter) but be warned that hunters use this location and it has also been a notorious ‘make-out spot’ for many years.

Alum Creek rests in the midst of the fertile agricultural till plains and river valleys of Delaware County. In contrast to the surrounding farmlands, the park offers a diverse array of natural features. Cliffs of Ohio shale are notable in many areas, exposed as Alum Creek and other streams cut through underlying bedrock. The shale was formed as mud washed into the ancient sea which covered the area several hundred million years ago. The dark hue of the rock is due to the mixture of a carbonized plant material and mud that formed the shale.

The rich soils of Delaware County gave rise to a luxuriant beech-maple forest after the retreat of the glaciers about 12,000 years ago. That original forest has long since been cut but a healthy second-growth forest is preserved in the park. The woodlands harbor a variety of plant species and offer the interested observer beautiful displays of wildflowers and wildlife. Large-flowered trillium, wild geranium, bloodroot, and spring beauties carpet the forest floor. The forest is home to fox squirrel, woodchuck, rabbit, white-tail deer, and many other species of wildlife.