Clark's Boat Ramp is a privately owned facility located at the terminus of 7th Street in Port O'Connor, offering access to the Intracoastal Waterway with potential for Gulf access near Pass Cavallo.

The ramp features a boat dock, restroom and bait shop with fresh water and electricity, plus a user fee; however, parking is limited and primitive, situated within a tidal area that needs improvement.

The facility experiences some shoreline erosion but remains one of the more heavily used boat ramps in the area.