According to the latest available information, the boat ramp named Henslin Drive Southeast 5725, Olympia is a concrete boat ramp located on the eastern shore of Black Lake in Thurston County, Washington. The ramp is approximately 20 feet wide and provides easy access to the lake for boaters.

Black Lake is a popular recreational lake that offers a variety of water activities, such as fishing, boating, kayaking, and swimming. The lake is approximately 500 acres in size and has a maximum depth of 60 feet. It is home to a variety of fish species, including rainbow trout, largemouth bass, and yellow perch.

As for the kind of craft permitted on the water, the latest information indicates that motorized boats are allowed on Black Lake, as long as they comply with boating regulations, such as having a valid registration, safety equipment, and following speed limits. Non-motorized boats, such as kayaks, canoes, and paddleboards, are also permitted on the lake.

Overall, the Henslin Drive Southeast 5725 boat ramp provides easy access to Black Lake for boaters and offers a variety of recreational opportunities for visitors.