Here are the directions to the Town of Henderson Boat Launch. If you could please post these on the website I would appreciate it.
Located at the south end of Henderson Bay; From Route 3 south of Henderson Harbor, take Military Road (Route 178) west .6 mile to the location.
For Garmin/Nuvi or other mapping devices you may use this address:
Harbors End Marina
8043 County RT 178
The boat launch will be just before this on the right hand side if you are heading west.