After conducting research, it appears that the Kilbourne Hand Launch boat ramp is located in Delaware County, Ohio, and is situated along the Olentangy River. It is a small, public hand launch ramp that is primarily used by kayakers, canoers, and other small watercraft.

The ramp itself is relatively narrow, with a width of only a few feet. It is designed to allow for easy access to the water for those who are hand-launching their boats. There is no formal parking lot associated with the ramp, although there is space nearby where vehicles can be parked.

The Olentangy River, which is serviced by the Kilbourne Hand Launch boat ramp, is a popular destination for kayakers and other small boaters in the area. It is known for its scenic beauty and calm waters, making it an ideal location for recreational boating.

In terms of permitted watercraft, the Kilbourne Hand Launch boat ramp is open to any small boats, including kayaks, canoes, paddleboards, and other similar craft. However, due to the narrowness of the ramp and the relatively small size of the Olentangy River, larger boats are not recommended or permitted.

It is important to note that information about the Kilbourne Hand Launch boat ramp may change over time, so it is always recommended to check local resources or with the relevant authorities to obtain the most up-to-date information.