Based on the latest information available, the boat ramp named Mission Bay Drive San Diego is a concrete boat ramp that is approximately 36 feet wide. This boat ramp services Mission Bay, which is the largest aquatic park in the United States, located in San Diego, California.

The body of water that the boat ramp provides access to is Mission Bay, which is an inlet of the Pacific Ocean. This body of water is known for its calm waters and is popular for recreational activities, including boating, kayaking, paddleboarding, and fishing.

The types of craft that are permitted on the water in Mission Bay include powerboats, sailboats, kayaks, canoes, and personal watercraft such as jet skis. However, there are specific regulations in place for each type of craft, and it is important to follow these regulations to ensure the safety of all users of the bay.

In terms of facilities, the boat ramp at Mission Bay Drive San Diego provides parking for vehicles and boat trailers, as well as restrooms and showers for boaters. It is also conveniently located near several marinas and boat rental facilities, making it a popular launching point for boaters visiting the area.

Overall, the boat ramp at Mission Bay Drive San Diego is an important access point for boaters looking to enjoy the calm waters of Mission Bay in San Diego, California.