The boat ramp named Card Sound Rd in Florida is a public boat ramp managed by the Florida Fish and Wildlife Conservation Commission. It is a concrete boat ramp that is 30 feet wide and has one lane for launching boats. The ramp also has a parking area that can accommodate up to 50 vehicles with boat trailers.

The Card Sound Rd boat ramp services the Card Sound Bay, which is located in the southern part of Florida. Card Sound Bay is a shallow water body that is part of the Florida Bay ecosystem. It is known for its diverse marine life, including various species of fish, crustaceans, and mollusks.

The boat ramp allows different kinds of watercraft, including powerboats, sailboats, kayaks, and canoes. However, the use of personal watercraft such as jet skis and wave runners is not allowed in Card Sound Bay.

This information was obtained from the Florida Fish and Wildlife Conservation Commission website, which provides up-to-date information on the state's public boat ramps and their facilities.